diff --git a/_layouts/default.html b/_layouts/default.html
index f681e7db..3b45e3a4 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -227,23 +227,6 @@ <h1>{{ page.headline }}</h1>
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
     <script src="https://netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="/js/main.js"></script>
-    <script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-54207a8d10b4461b"></script>
-    <script type="text/javascript">
-        addthis.layers({
-            'theme': 'transparent',
-            'share': {
-                'position': 'right',
-                'numPreferredServices': 4,
-                'services': 'facebook,twitter,print,more'
-            },
-            //'follow': {
-            //    'services': [
-            //      { 'service': 'facebook', 'id': 'fsharp.org' },
-            //      { 'service': 'twitter', 'id': 'fsharporg' }
-            //    ]
-            //}
-        });
-    </script>
     <script>
         (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
         (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
diff --git a/community/projects/index.md b/community/projects/index.md
index 13b02d95..16f5de20 100644
--- a/community/projects/index.md
+++ b/community/projects/index.md
@@ -58,7 +58,7 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 *  ![logo](../../images/thumbs/FSharp.Formatting.png)&nbsp;[FSharp.Formatting](http://fsprojects.github.io/FSharp.Formatting) - F# tools for generating documentation: Markdown processor and F# code formatter
 
-*  ![logo](../../images/thumbs/FSDN.png)&nbsp;[FSDN](http://fsdn.azurewebsites.net/) - FSDN is a web application that uses F# API Search library. F# API Search library supports the standard signature of F# with some extentions. This document describes the F# API Search library specific formats.
+*  ![logo](../../images/thumbs/FSDN.png)&nbsp;[FSDN](https://github.com/fsdn-projects/FSDN) - FSDN is a web application that uses F# API Search library. F# API Search library supports the standard signature of F# with some extentions. This document describes the F# API Search library specific formats.
 
 <br />
 
@@ -86,7 +86,7 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 *  ![logo](../../images/thumbs/FSharpx.Collections.png)&nbsp;[FSharpx.Collections](http://fsprojects.github.io/FSharpx.Collections/) - A set of functional programming collections for F#.
 
-*  [Aether](https://xyncro.tech/aether) - An optics (lenses, prisms, morphisms) library for F# that enables  powerful ways of working with data structures.
+*  [Aether](https://github.com/xyncro/aether) - An optics (lenses, prisms, morphisms) library for F# that enables  powerful ways of working with data structures.
 
 *  [F# Snippets](http://fssnip.net/) - A community-contributed catalog of F# Snippets
 
@@ -114,9 +114,7 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 *  ![logo](../../images/thumbs/FSharp.Data.Toolbox.png)&nbsp;[FSharp.Data.Toolbox](http://fsprojects.github.io/FSharp.Data.Toolbox) - F# Data-based library for various data access APIs, includes a Twitter access package.
 
-*  [Chiron](https://xyncro.tech/chiron) - A library for functional JSON in F#, including parsing, formatting, serialization and deserialization (through explicit object mapping), and working effectively with complex JSON data.
-
-*  [Apiary Provider](http://fsprojects.github.io/ApiaryProvider) - A type provider that makes it possible to easily call REST services that are documented using the apiary.io service.
+*  [Chiron](https://github.com/xyncro/chiron) - A library for functional JSON in F#, including parsing, formatting, serialization and deserialization (through explicit object mapping), and working effectively with complex JSON data.
 
 *  ![logo](../../images/thumbs/FSharp.Data.SqlClient.png)&nbsp;[FSharp.Data.SqlClient](http://fsprojects.github.io/FSharp.Data.SqlClient/) - use SQL to specify queries, explore Stored Procedures, User Defined Types and Functions with auto-complete right in your F# code.
 
@@ -132,9 +130,7 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 *  [Azure Storage Type Provider](http://fsprojects.github.io/AzureStorageTypeProvider/) - A type provider for Azure Storage assets e.g. Blobs and Tables.
 
-*  ![logo](../../images/thumbs/HiveProvider.png)&nbsp;[FSharp.Data.HiveProvider](http://fsprojects.github.io/FSharp.Data.HiveProvider) - An F# type provider for writing simple Hive/Hadoop queries. Contributions welcome!
-
-*  ![logo](../../images/thumbs/DAXIFsharp.png)&nbsp;[DAXIF# - Delegate Automated Xrm Installation Framework](http://delegateas.github.io/Delegate.DAXIFsharp/) - A set of tools that in combination with other Microsoft Tools, make it easier to work with Microsoft Dynamics CRM/xRM on a daily basis, also for developers who are not familiar with the platform.
+*  ![logo](../../images/thumbs/DAXIFsharp.png)&nbsp;[DAXIF# - Delegate Automated Xrm Installation Framework](https://github.com/delegateas/Daxif) - A set of tools that in combination with other Microsoft Tools, make it easier to work with Microsoft Dynamics CRM/xRM on a daily basis, also for developers who are not familiar with the platform.
 
 * ![logo](../../images/thumbs/sqlfun-small.png)&nbsp;[SqlFun](https://jacentino.github.io/SqlFun) - An SQL database access library. Supports direct SQL calls, automatic CRUD operations, stored procedures, collection parameters and complex result structures. Allows to define custom query DSL-s. Type safe and idiomatically functional.
 
@@ -180,9 +176,6 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
    algorithms including linear algebra, special functions, statistics, probability models,
    interpolation and FFTs. Supports F# 3.0+ with idiomatic extension modules.
 
-*  ![logo](../../images/thumbs/fuzzy.png)&nbsp;[FSharp.Numerics.FuzzyIntervals](http://fsprojects.github.io/FSharp.Numerics.FuzzyIntervals/) - A basic math library of fuzzy
-   and interval calculus with examples
-
 *  ![logo](../../images/thumbs/DiffSharpLogoSmall.png)&nbsp;[DiffSharp](http://diffsharp.github.io/DiffSharp/) - An automatic differentiation (AD) library for exact and efficient calculation of derivatives (gradients, Hessians, Jacobians, directional derivatives, and matrix-free Hessian- and Jacobian-vector products). Also includes symbolic and numerical differentiation.
 
 *  ![logo](../../images/thumbs/FsAlgLogoSmall.png)&nbsp;[FsAlg](http://gbaydin.github.io/FsAlg/) - A lightweight linear algebra library supporting generic types.
@@ -199,13 +192,10 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 <h2 class="anchor" id="ui" class="anchor">Community Projects: Client User Interfaces</h2>
 
-*  [Interstellar](https://jwosty.github.io/Interstellar/) - A library that enables the creation of cross-platform browser-based applications. It abstracts around various different browser APIs, so your application can use either Chromium or Apple WebKit.
+*  [Interstellar](https://fsprojects.github.io/Interstellar/) - A library that enables the creation of cross-platform browser-based applications. It abstracts around various different browser APIs, so your application can use either Chromium or Apple WebKit.
 
 *  [FsXaml](https://github.com/fsprojects/FsXaml) - F# Tools for working with XAML Projects
 
-*  ![logo](../../images/thumbs/FSharp.Desktop.UI.png)&nbsp;[FSharp.Desktop.UI](http://fsprojects.github.io/FSharp.Desktop.UI/) - A community
-  framework to take advantage of the F# language features to create truly type-safe WPF applications.
-
 *  [FSharp.ViewModule](https://github.com/fsprojects/FSharp.ViewModule/) - Type provider to generate an MVVM style ViewModel directly from an idiomatic F# module.
 
 <br />
@@ -216,9 +206,6 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 *  [Spreads](https://github.com/Spreads/Spreads/#spreads) - Spreads is an ultra-fast library for complex event processing and time series manipulation.  Spreads is a library, not a framework, and could be plugged into existing code bases and used immediately. Even though the primary domain is financial data, Spreads is designed as a generic complex event processing library.
 
-*  ![logo](../../images/thumbs/FSharp.Data.png)&nbsp;[The Xenomorph Provider for F#](http://fsprojects.github.io/FSharp.Data.Experimental.XenomorphProvider/) - Connects F# to Xenomorph TimeScape(TM) using a type provider.
-
-
 <br />
 
 <h2 class="anchor" id="web" class="anchor">Community Projects: Web Tools</h2>
@@ -248,11 +235,9 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 * [Firm](http://andagr.github.io/Firm/) - A blog aware, static site generation using F#. It supports stand-alone pages, blog posts, rss, tags (tag cloud) and post archive. Templates are written in Razor. Posts and pages are written in Markdown.
 
-* [Nini](https://github.com/YoloDev/Nini) - A micro web framework for DNX (ASP.NET vNext).
-
 * [Falco](https://github.com/pimbrouwers/Falco) - A functional micro-library for building brilliant ASP.NET Core applications using F#. Low barrier to entry for those new to functional programming.
 
-* [Interstellar](https://jwosty.github.io/Interstellar/) - A library that enables the creation of cross-platform browser-based applications. It abstracts around various different browser APIs, so your application can use either Chromium or Apple WebKit.
+* [Interstellar](https://github.com/fsprojects/Interstellar) - A library that enables the creation of cross-platform browser-based applications. It abstracts around various different browser APIs, so your application can use either Chromium or Apple WebKit.
 
 <br />
 
@@ -277,7 +262,7 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
    *  [ResXTypeProvider](http://fsprojects.github.io/FSharp.Configuration/ResXProvider.html) - Typed access to .resx files.
 
-   *  [YamlTypeProvider](http://fsprojects.github.io/FSharp.Configuration/YamlProvider.html) - Typed access to Yaml.
+   *  [YamlConfigProvider](https://fsprojects.github.io/FSharp.Configuration/YamlConfigProvider.html) - Typed access to Yaml.
 
 <br />
 
@@ -308,8 +293,6 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 *  ![logo](../../images/thumbs/nessos.png)&nbsp;[Vagabond](http://mbraceproject.github.io/Vagabond/) - A library for distributing dynamic assemblies.
 
-*  ![logo](../../images/thumbs/filbert.png)&nbsp;[Filbert](http://fsprojects.github.io/Filbert/) - A simple BERT serializer and BERT-RPC client for .Net written in F#.
-
 *  ![logo](../../images/thumbs/AkkaDotNET.png)&nbsp;[Akka.NET](https://github.com/akkadotnet/akka.net) - .NET community port of the Java/Scala framework Akka.
 
 *  ![logo](../../images/thumbs/fszmq_logo.png)&nbsp;[fszmq](http://zeromq.github.io/fszmq/) - a binding to the ZeroMQ distributed computing library for F# (and other CLR languages).
@@ -390,7 +373,7 @@ Tags: <a href="#compiler">Compiler</a>, <a href="#editing">Editing</a>, <a href=
 
 <h2 class="anchor" id="textsearch" class="anchor">Community Projects: Text Search Tools</h2>
 
-*  ![logo](../../images/thumbs/FlexSearch.png)&nbsp;[FlexSearch](http://www.flexsearch.net/) Flexible and fast open source F# based Search Engine
+*  ![logo](../../images/thumbs/FlexSearch.png)&nbsp;[FlexSearch](https://github.com/FlexSearch/FlexSearch) Flexible and fast open source F# based Search Engine
 
 * [MITIE-Dot-Net](https://github.com/BayardRock/MITIE-Dot-Net/blob/master/README.md) - A Nice .NET Wrapper for the MITIE Information Extraction Library (Written in F#, but fully C# compatible)
 
diff --git a/guides/cloud/index.md b/guides/cloud/index.md
index 98c5355c..6dc1d19d 100644
--- a/guides/cloud/index.md
+++ b/guides/cloud/index.md
@@ -84,15 +84,15 @@ The [Orleans](https://dotnet.github.io/orleans/) framework provides a straightfo
 
 #### Kafka
 
-* [FsKafka](https://jet.github.io/FsKafka/) - An F# Kafka client.
+* [FsKafka](https://github.com/jet/FsKafka) - An F# Kafka client.
 
 * [anaerobic](https://github.com/anaerobic/fsharp-kafka-simple) - A simple implementation of a Kafka producer and consumer in F#.
 
 #### ZeroMQ
 
-* [F# ZeroMQ bindings](http://zeromq.github.io/fszmq)  An F#-specific binding for the [ZeroMQ](http://www.zeromq.org) (Zero Message Queue) library.
+* [F# ZeroMQ bindings](https://zeromq.org/languages/fsharp)  An F#-specific binding for the [ZeroMQ](http://www.zeromq.org) (Zero Message Queue) library.
 
-* [ZeroMQ](http://www.zeromq.org/bindings:clr) - A more general .NET binding for ZeroMQ.
+* [ZeroMQ](https://zeromq.org/languages/csharp/) - A more general .NET binding for ZeroMQ.
 
 #### MPI
 
diff --git a/guides/data-science/index.md b/guides/data-science/index.md
index 91bb8313..ec44312c 100644
--- a/guides/data-science/index.md
+++ b/guides/data-science/index.md
@@ -28,9 +28,6 @@ REPL-scripting, powerful libraries and scalable data integration.
 provides data scientists and developers a way to explore data, experiment with code, and try new ideas
 effortlessly using .NET Core. Use .NET Interactive to build .NET Jupyter notebooks or custom interactive coding experiences.
 
-  * [Try Online in Binder](https://github.com/dotnet/interactive/blob/main/docs/NotebooksOnBinder.md)
-  * [Install Locally](https://github.com/dotnet/interactive/blob/main/docs/install-dotnet-interactive.md)
-
 <br />
 ## Integrated Packages
 {: #integrated-packages .anchor }
@@ -152,8 +149,7 @@ If a resource specific to F# can't be found, then search for C# instead and adju
 and more. Your entire add-in can be packed into a single .xll file requiring no installation or registration:
 
  * [Excel-DNA home pages](http://excel-dna.net/)
- * [Async and event-streaming Excel UDFs with F#](http://excel-dna.net/2013/03/26/async-and-event-streaming-excel-udfs-with-f/)
- * [Machine Learning with Excel: Combine the power of Excel, F# and R](http://luajalla.azurewebsites.net/excel-dna-three-stories/)
+ * [Async and event-streaming Excel UDFs with F#](https://excel-dna.net/blog/2013/03/26/async-and-event-streaming-excel-udfs-with-f)
 
 [Sharp Cells](https://www.sharpcells.com/) is another independent project which integrates F# scripting with Excel. It exposes the scripts as either user-defined functions (UDFs) using [Excel's XLL API](https://learn.microsoft.com/en-us/office/client-developer/excel/welcome-to-the-excel-software-development-kit) or commands using [Excel's COM API](https://learn.microsoft.com/en-us/dotnet/api/microsoft.office.interop.excel?view=excel-pia). Compilation takes place at runtime allowing rapid iteration of your code and the scripts are embedded with the workbook maintaining single-file portability similar to VBA.
 
@@ -163,8 +159,6 @@ and more. Your entire add-in can be packed into a single .xll file requiring no
 
 [NPOI](https://github.com/nissl-lab/npoi/) is .NET version of POI Java project at http://poi.apache.org/. POI is an open source project which can help you read/write xls, doc, ppt files.
 
- * [Example of how to work with Excel using NPOI in F#](https://github.com/Heather/FXL/blob/master/RNExceL/Model/NPOI.fs#L19)
-
 NPOI manipulates the Open Office XML format directly so does not require having Excel installed and do not use Interop. You can read, create, and edit Excel documents using this approach.
 
  * [Charting with Excel from F#](http://bit.ly/GGv8z4)
diff --git a/guides/mobile-apps/index.md b/guides/mobile-apps/index.md
index e5751286..afa3e7cf 100644
--- a/guides/mobile-apps/index.md
+++ b/guides/mobile-apps/index.md
@@ -34,7 +34,7 @@ Mobile.
 
   * [F# Platform Game Series](https://www.youtube.com/playlist?list=PLIH3o_QrxxcfNMC3TjZ5NlHnB1AmcyaiV) - A YouTube series on building a platform game from scratch using F# and MonoGame
 
-  * [Making an endless runner game in F# using MonoGame](http://timjones.tw/blog/archive/2014/12/28/make-santa-jump-game-in-fsharp-using-monogame)
+  * [Making an endless runner game in F# using MonoGame](http://timjones.io/blog/archive/2014/12/28/make-santa-jump-game-in-fsharp-using-monogame)
 
 * [Unity3D](https://github.com/eriksvedang/FSharp-Unity) Unity3D is a popular closed source game engine. 
  
diff --git a/guides/web/index.md b/guides/web/index.md
index 0d4e229d..8bd0a160 100644
--- a/guides/web/index.md
+++ b/guides/web/index.md
@@ -244,8 +244,6 @@ build web applications with F#:
 
 * [F# 3.0: data, services, Web, cloud, at your fingertips](http://channel9.msdn.com/Events/Build/BUILD2011/SAC-904T)
 
-* [F# Introduction](http://skillsmatter.com/podcast/scala/phil-trelford-f-introduction)
-
 ------
 
 ## Hosting
@@ -253,7 +251,7 @@ build web applications with F#:
 
 Common hosting options are:
 
-* [Heroku](http://heroku.com/) - See, for example, [F#, ServiceStack and Heroku](https://github.com/kunjee17/ServiceStackHeroku) and complete article about [hosting NancyFx and F# on Heroku](http://blog.ashleytowns.id.au/posts/2013-04/2013-04-01-running-csharp-fsharp-xbuild-nuget-on-heroku.html)
+* [Heroku](http://heroku.com/) - See, for example, [F#, ServiceStack and Heroku](https://github.com/kunjee17/ServiceStackHeroku) and complete article about [hosting NancyFx and F# on Heroku](https://blog.ashleytowns.id.au/posts/2013-04-01-running-csharp-fsharp-xbuild-nuget-on-heroku.html)
 
 * [Azure Web Sites](http://www.windowsazure.com/) - Create and deploy to free Azure web sites from Visual Studio and other tools
 
diff --git a/index.html b/index.html
index 6967e723..5ac8e838 100644
--- a/index.html
+++ b/index.html
@@ -391,22 +391,6 @@ <h2 class="text-center section-header"><a href="https://foundation.fsharp.org/sp
         </div>
     </section>
 
-<!--   <section class="home-section" style="border: none;">
-        <div class="container featured">
-            <div class="row wow animated fadeIn">
-                <div class="col-md-2 menu">
-                    <h4>Follow</h4>
-                    <div class="addthis_toolbox addthis_32x32_style addthis_vertical_style">
-                        <a class="addthis_button_facebook_follow" addthis:userid="fsharp.org"></a>
-                        <a class="addthis_button_twitter_follow" addthis:userid="fsharporg"></a>
-                    </div>
-                    <script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-54207a8d10b4461b"></script>
-                </div>
-            </div>
-        </div>
-    </section>
-
--->
     <div class="push"></div>
     <div class="push"></div>
 
@@ -430,23 +414,6 @@ <h4>Follow</h4>
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
     <script src="https://netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="js/home.js"></script>
-    <script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-54207a8d10b4461b"></script>
-    <script type="text/javascript">
-        addthis.layers({
-            'theme': 'transparent',
-            'share': {
-                'position': 'right',
-                'numPreferredServices': 4,
-                'services': 'facebook,twitter,more'
-            },
-            //'follow': {
-            //    'services': [
-            //      { 'service': 'facebook', 'id': 'fsharp.org' },
-            //      { 'service': 'twitter', 'id': 'fsharporg' }
-            //    ]
-            //}
-        });
-    </script>
     <script type="text/javascript">
         var _gaq = _gaq || [];
         _gaq.push(['_setAccount', 'UA-35753329-2']);
diff --git a/learn/files/BookEFS.jpg b/learn/files/BookEFS.jpg
new file mode 100644
index 00000000..94af6bc6
Binary files /dev/null and b/learn/files/BookEFS.jpg differ
diff --git a/learn/files/CourseLFPWFS.jpg b/learn/files/CourseLFPWFS.jpg
new file mode 100644
index 00000000..5f0feec4
Binary files /dev/null and b/learn/files/CourseLFPWFS.jpg differ
diff --git a/learn/index.md b/learn/index.md
index 29e70a02..215b8f27 100644
--- a/learn/index.md
+++ b/learn/index.md
@@ -63,7 +63,7 @@ Eager to learn F#? Learning a new language, yet a new paradigm, can be very daun
 
 Learn F# by just filling in the gaps! The F# Koans are a fun set of code snippets where you have to fill in gaps to get tests to pass, and you learn the language along the way.  Also available as a [snippet](http://fssnip.net/bG) which can be loaded into interactive environments or your editor of choice.
 
-### [F# Workshop Materials](http://fsharpworkshop.com/)
+### [F# Workshop Materials](https://github.com/jorgef/fsharpworkshop)
 
 Material from the F# Introduction Workshop created by Jorge Fioranelli.
 
@@ -109,9 +109,9 @@ What You'll Learn
 - Appreciate the methods available to handle unknown data values
 - Understand asynchronous and parallel programming in F#, and how it differs from C# asynchronous programming
 
-### [Essential Functional-First F#](https://leanpub.com/essential-fsharp)
+### [Essential F#](https://leanpub.com/essential-fsharp)
 
-<img src="/learn/files/BookEFFF.jpg" style="float:right;margin:5px 0px 5px 25px;" />
+<img src="/learn/files/BookEFS.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
 _Ian Russell_
 
@@ -185,7 +185,7 @@ differs from other approaches. It explains how ideas look in F#-a
 functional language-as well as how they can be successfully used to solve
 programming problems in C#.
 
-### [F# for Quantitative Finance](https://www.packtpub.com/big-data-and-business-intelligence/f-quantitative-finance)
+### [F# for Quantitative Finance](https://www.packtpub.com/en-us/product/f-for-quantitative-finance-9781782164630)
 
 <img src="/learn/files/BookFQF.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
@@ -270,7 +270,7 @@ _Mathias Brandewinder_
 
 Machine Learning Projects for .NET Developers shows you how to build smarter .NET applications that learn from data, using simple algorithms and techniques that can be applied to a wide range of real-world problems.
 
-### [Mastering .NET Machine Learning](https://www.packtpub.com/big-data-and-business-intelligence/mastering-net-machine-learning)
+### [Mastering .NET Machine Learning](https://www.packtpub.com/en-us/product/mastering-net-machine-learning-9781785881190)
 
 <img src="/learn/files/MasterDotNetML.PNG" style="float:right;margin:5px 0px 5px 25px;" />
 
@@ -312,7 +312,7 @@ In this book you will read:
 - Databases (Sql Server, Query Expressions, Type Providers, ...)
 - User Interfaces (Windows Forms, WPF, GTK#)
 
-### [F# Applied](https://www.demystifyfp.com/FsApplied)
+### [F# Applied](https://www.tamizhvendan.in/book/FsApplied/)
 
 <img src="/learn/files/BookFP.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
@@ -327,7 +327,7 @@ In this book you will read:
 - How to set up continuous integration and continuous deployment using FAKE and Docker
 - How to leverage libraries like Rx, FSharp.Data and Paket
 
-### [F# 4.0 Design Patterns](https://www.packtpub.com/application-development/f-40-design-patterns)
+### [F# 4.0 Design Patterns](https://www.packtpub.com/en-us/product/f-40-design-patterns-9781785889516)
 
 <img src="/learn/files/BookFS4DP.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
@@ -346,7 +346,7 @@ In this book you will:
 - Navigate and use F# Core libraries with ease by seeing patterns behind specific library functions
 - Master writing generic polymorphic code
 
-### [Mastering F#](https://www.packtpub.com/application-development/mastering-f)
+### [Mastering F#](https://www.packtpub.com/en-us/product/mastering-f-9781784393434)
 
 <img src="/learn/files/BookMFS.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
@@ -364,7 +364,7 @@ In this book you will:
 - Find out how to perform distributed programming with ServiceBus or ZeroMQ
 - Visualize data with charts, and work with Excel and R language Type providers
 
-### [F# High Performance](https://www.packtpub.com/application-development/f-high-performance)
+### [F# High Performance](https://www.packtpub.com/en-us/product/f-high-performance-9781786462992)
 
 <img src="/learn/files/BookFSHP.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
@@ -381,9 +381,9 @@ In this book you will:
 - Combine the best practice of asynchronous and synchronous
 - Optimize further using various F# language constructs
 
-### [Learning Basics of Functional Programming (Integrated Course)](https://www.packtpub.com/web-development/learning-basics-functional-programming-integrated-course)
+### [Learning Functional Programming with F#: Get started on building end-to-end web applications with F#](https://www.packtpub.com/en-us/product/learning-functional-programming-with-f-9781788477840)
 
-<img src="/learn/files/CourrseLBFP.jpg" style="float:right;margin:5px 0px 5px 25px;" />
+<img src="/learn/files/CourseLFPWFS.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
 _Onur Gumus_
 
@@ -405,7 +405,7 @@ This book is the first and the only F# book in Turkish. The book covers F# and g
 F#, aktif ve bağımsız geliştirici topluluğu tarafından yön verilen, özellikle bulut teknolojileri, veri analizi ve bilimsel çalışmalarda kullanımı her geçen gün artan sade ve şık bir programlama dilidir.
 F# ile Microsoft'un .NET platformu üzerinde Windows, Linux ve OSX işletim sistemlerinde çalışabilen her çapta ve özllikte uygulamalar geliştirebilirsiniz. Hatta sistem yönetimi scriptlerinizi bile F# ile oluşturabilirsiniz. F# ile Fonksiyonel Programlama kitabında F#'ın sunduğu tüm bu imkanlar ile sizi tanıştırmayı ve bol kod örnekleri ile F#'ı özümsemenizi hedefliyoruz.
 
-### [Building F# Applications (Video)](https://www.packtpub.com/application-development/building-f-applications-video)
+### [Building F# Applications (Video)](https://www.packtpub.com/en-us/product/building-f-applications-9781788298858)
 
 <img src="../learn/files/VideoBFA.jpg" style="float:right;margin:5px 0px 5px 25px;" />
 
diff --git a/teaching/research.md b/teaching/research.md
index 551f2f64..04c17549 100644
--- a/teaching/research.md
+++ b/teaching/research.md
@@ -11,8 +11,6 @@ students and researchers worldwide. Many standard F# features (including _active
 have been described in publications, and many
 research projects build on top of F#. 
 
-<a href="http://blogs.msdn.com/b/dsyme/archive/2012/07/11/how-to-reference-for-f-in-a-research-paper.aspx">How to reference F# in a research paper</a>.
-
 To add a paper to this list [edit this page](https://github.com/fsharp/fsharp.org/edit/gh-pages/teaching/research.md) and submit a pull request.
 
  * **[F# Books](../learn/index.html#books)** - books about the F# language, including practical guides for using F# in practice.
@@ -111,7 +109,7 @@ The F# language includes a feature called F# 3.0 Type Providers to support the i
 ## Asynchronous, Concurrent and Reactive programming
 {: #asynchronous-concurrent-and-reactive-programming .anchor }
 
-### [The F# Asynchronous Programming Model](http://blogs.msdn.com/b/dsyme/archive/2010/10/21/the-f-asynchronous-programming-model-padl-2010-pre-publication-draft.aspx)
+### [The F# Asynchronous Programming Model](https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/async-padl-revised-v2.pdf)
 
 Don Syme, Tomas Petricek, Dmitry Lomov  
 _Proceedings of PADL 2011_
@@ -185,7 +183,7 @@ F# computation expressions answer this question in the affirmative. Unlike the d
 
 We show that computation expressions can structure well-known computations including monoidal list comprehensions, monadic parsers, applicative formlets and asynchronous sequences based on the list monad transformer. We also present typing rules for computation expressions that are capable of capturing all these applications.
 
-### [Classes for the Masses](http://www.mlworkshop.org/2016-7.pdf)
+### [Classes for the Masses](https://www.microsoft.com/en-us/research/wp-content/uploads/2017/08/2016-7.pdf)
 
 Claudio Russo, Matthew Windsor, Don Syme, Rupert Horlick, James Clarke
 _Proceedings of ML 2016_
@@ -236,19 +234,6 @@ comprehensions, monadic parsers, applicative formlets and asynchronous sequences
 monad transformer. We also present typing rules for computation expressions that are capable of 
 capturing all these applications.
 
-
-### [Rapid Prototyping of DSLs with F#](http://academic.research.microsoft.com/Publication/39281456/rapid-prototyping-of-dsls-with-f#)
-
-Adam Granicz
-_Central European Functional Programming School (CEFP)_
-
-In these lecture notes we present the F# implementation of a small programming language we call Simply. 
-We give the parser implementation using active patterns, F#’s unique feature for extensible pattern matching, 
-which as we demonstrate provide an elegant and type-safe mechanism to embed parsers as an alternative approach 
-to parser generators. We also build an evaluator, and extend the core Simply language with Logo-like 
-primitives and build a graphical shell environment around it. As a warm-up, we give a rudimentary survey 
-of some notable F# features, including sequence expressions and active patterns.
-
 --------------
 
 ##  Parallel and Distributed programming
@@ -286,7 +271,7 @@ pattern is also known as cloud workflows, or cloud monad. Finally, we have imple
 on top of the Microsoft Azure platform, providing MBrace.Azure: a distributed execution runtime for
 cloud computations.
 
-### [Specifying and Executing Optimizations for Parallel Programs](http://web.engr.illinois.edu/~mansky1/exec.pdf)
+### [Specifying and Executing Optimizations for Parallel Programs](https://egunter.cs.illinois.edu/papers/GRAPHITE2014.pdf)
 
 William Mansky, Dennis Griffith, Elsa L. Gunter
 _In pre-proceedings of GRAPHITE '14_
@@ -342,7 +327,7 @@ whose type reflects this behaviour, a consequence
 of which would be a full abstraction result for
 a model of the language.
 
-### [Programming Languages and Dimensions](http://academic.research.microsoft.com/Publication/1387457/programming-languages-and-dimensions)
+### [Programming Languages and Dimensions](https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-391.pdf)
 
 Andrew Kennedy
 _PhD Thesis, University of Cambridge, 1995_
diff --git a/testimonials/index.md b/testimonials/index.md
index c0758933..d94fc47d 100644
--- a/testimonials/index.md
+++ b/testimonials/index.md
@@ -148,18 +148,6 @@ Type Providers have let us add support for a lot of data formats (Government for
 
 <div class="keywords">startup, finance, taxation, type providers, functional programming</div>
 
-<a id="sashan-govender" class="testimonial-anchor"> &nbsp; </a>
----
-
-> Using a language that I enjoy using, that lets me write beautiful code, and do work that I find intrinsically satisfying is such an amazing privilege, that I wish that blessing on every programmer out there, that their days aren't spent in a jaded, colourless miasma of code.
-
-1. **Sashan Govender, [tiny-thoughts](https://www.tiny-thoughts.net/a-new-hope/)**
-2. [permalink](#sashan-govender)
-
-Ever noticed how excited some engineers get when talking about their favourite language? It’s because there is a neural pathway in their brains linking the emotional parts of their brain with the technology. This property of a language is overlooked and engineers are apt to justify their choice of language based on a feature or performance. But a simple thought experiment can show that the subjective experience using a language does matter. Imagine a language called WhiteSpace++ (there is a Whitespace language) which is twice the speed of any other language but all the code is written in whitespace. Nobody would use it because it would be unuseable. 
-
-<div class="keywords">beautiful, whitespace</div>
-
 <a id="deyan-petrov" class="testimonial-anchor"> &nbsp; </a>
 ---
 
@@ -377,25 +365,6 @@ The 10x performance gain was verified by the client.
 
 <div class="keywords">financial services, insurance, actuarial</div>
 
-<a id="trafigura-ad-1" class="testimonial-anchor"> &nbsp; </a>
----
-
-> Our risk and analytic capabilities (...) are entirely written in F#
-
-1. **Lawrence Austen**
-2. Chief Risk Officer at Trafigura
-3. [source](http://cs.hubfs.net/topic/None/59847), [permalink](#trafigura-ad-1)
-
-...work directly with Trafigura's Chief Risk Officer/Head of Quantitative Analysis, 
-cranking code and rapidly extending our risk and analytic capabilities, which are entirely 
-written in F#. 
-
-Trafigura Limited engages in the supply and offtake of crude oil, petroleum products, liquefied 
-petroleum gas, metals, and metal ores and concentrates worldwide. Its solutions include trading, 
-financing, hedging, and logistical support....
-
-<div class="keywords">comodities, trading, risk, analysis</div>
-
 <a id="yan-cui" class="testimonial-anchor"> &nbsp; </a>
 ---
 
@@ -655,19 +624,6 @@ The development exercise becomes catered towards optimization, performance tunin
 Functionality is not lost from the prototype due to miscommunication or rather crude documentation/requirements, which saves time in testing.
 Mass regression testing is easy with precise precision level differences between the prototype and the production system.
 
-<a id="julien-laugel-1" class="testimonial-anchor"> &nbsp; </a>
----
-
-> F# allows you to move smoothly in your programming style
-
-1. **Julien Laugel**, eurostocks.com
-2. [source](http://www.slideshare.net/lgayowski/taking-functional-programming-into-the-mainstream-eclipse-summit-europe-2009), [permalink](#julien-laugel-1)
-
-I've been coding in F# lately, for a production task. F# allows you to move smoothly in your 
-programming style... I start with pure functional code, shift slightly towards an object-oriented style, 
-and in production code, I sometimes have to do some imperative programming. I can start with a pure idea, and 
-still finish my project with realistic code. You're never disappointed in any phase of the project!
-
 <div class="keywords">imperative, functional, financial services, portfolio analysis</div>
 
 <a id="simon-cousins-2" class="testimonial-anchor"> &nbsp; </a>
@@ -852,7 +808,7 @@ I jumped for joy each time my code executed correctly on the first pass, and in
 2. Associate Professor, Technical University of Denmark
 3. [permalink](#michael-hansen)
 
-Producing an [F#-based book](http://www.compute.dtu.dk/~mire/FSharpBook) on functional programming has been a fantastic experience.
+Producing an [F#-based book](http://www2.compute.dtu.dk/~mire/FSharpBook/index.html) on functional programming has been a fantastic experience.
 
 Using this material in an [F#-based course](http://www.compute.dtu.dk/courses/02157)
 introducing the fundamental concepts of functional programming has
@@ -896,7 +852,7 @@ problems in F#. A combination of functional and imperative F# with an
 occasional pinch of OO gives a very pleasing platform for program 
 development - once you have found your way through the wilderness of MSDN 
 documentation (newcomers to the MSDN world may benefit from the 
-MSDN library documentation found on the [web-site of the book](http://www.compute.dtu.dk/~mire/FSharpBook)). 
+MSDN library documentation found on the [web-site of the book](http://www2.compute.dtu.dk/~mire/FSharpBook/index.html). 
 All of Chapter 10 and part of Chapter 11 present program examples using 
 this programming style.
 
@@ -1264,22 +1220,6 @@ languages and use them where they're needed.
 
 <div class="keywords">domain modeling, immutability</div>
 
-<a id="antonio-hayley-1" class="testimonial-anchor"> &nbsp; </a>
----
-
-> I'd recommend F#... learning another language is one way to become a better programmer.
-
-1. **Antonio Hayley**
-2. [source](http://stackoverflow.com/a/179357), [permalink](#antonio-hayley-1)
-
-I'd recommend F# to a die hard C# developer just because learning another language 
-is one way a programmer can get out of a local maxima and 
-become a better programmer. And F# isn't just a different set of semantics on top of 
-the same syntax as most imperative languages are, 
-it's a totally different programming style. All the more to expand the capabilities 
-and understanding of a programmer.
-
-<div class="keywords">learning, imperative, functional</div>
 
 <a id="microsoft-narwhal-1" class="testimonial-anchor"> &nbsp; </a>
 ---
diff --git a/use/windows/index.md b/use/windows/index.md
index 08c1c62e..bc0cb0d8 100644
--- a/use/windows/index.md
+++ b/use/windows/index.md
@@ -77,7 +77,7 @@ Ionide works best if you use the .NET CLI to create your projects. You can learn
 
 2. Install the latest [.NET Core SDK](https://www.microsoft.com/net/core#windowscmd).
 
-You will also need either to install Visual Studio or to follow the steps [here](https://rider-support.jetbrains.com/hc/en-us/articles/207288089-Using-Rider-under-Windows-without-Visual-Studio-prerequisites) if you need to use the older .NET Framework instead of .NET Core.
+You will also need either to install Visual Studio or to follow the steps [here](https://rider-support.jetbrains.com/hc/en-us/articles/207288089-Using-Rider-on-Windows-without-Visual-Studio-prerequisites) if you need to use the older .NET Framework instead of .NET Core.
 
 <br />