diff --git a/Makefile.PL b/Makefile.PL
index 533ada314..ace41914d 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -3,6 +3,7 @@ sub author_tests { die "You need to install Module::Install::AuthorTests and Tes
 use inc::Module::Install;
 name 'Plack';
 all_from 'lib/Plack.pm';
+readme_from 'lib/Plack.pm';
 
 requires 'Class::Accessor::Fast';
 requires 'LWP'; # HTTP::Status, HTTP::Headers and HTTP::Request
diff --git a/README b/README
new file mode 100644
index 000000000..0adf165ee
--- /dev/null
+++ b/README
@@ -0,0 +1,76 @@
+NAME
+    Plack - PSGI reference implementation and utilities
+
+DESCRIPTION
+    Plack is a set of PSGI reference server implementations and helper
+    utilities for Web application frameworks, exactly like Ruby's Rack.
+
+    See PSGI for the PSGI specification.
+
+MODULES AND UTILITIES
+  Plack::Server
+    Plack::Server is a namespace for PSGI server implementations. We have
+    Standalone, CGI, FCGI, Apache, AnyEvent, Coro, Danga::Socket and many
+    server environments that you can run PSGI applications on.
+
+    See Plack::Server how to write your own server implementation.
+
+  Plack::Loader
+    Plack::Loader is a loader to load one of Plack::Server backends and run
+    PSGI application code reference with it.
+
+  Plack::Util
+    Plack::Util contains a lot of utility functions for server implementors
+    as well as middleware authors.
+
+  .psgi files
+    PSGI application is a code reference but it's not easy to pass code
+    reference in the command line or configuration files, so Plack uses a
+    convention that you need a file named "app.psgi" or alike, which would
+    be loaded (via perl's core function "do") to return the PSGI application
+    code reference. See eg/dot-psgi directory for the example ".psgi" files.
+
+  plackup
+    plackup is a command line launcher to run PSGI applications from command
+    line using Plack::Loader to load PSGI backends. It can be used to run
+    standalone servers and FastCGI daemon processes. Other server backends
+    like Apache2 needs a separate configuration but ".psgi" application file
+    can still be the same.
+
+  Plack::Middleware
+    PSGI middleware is a PSGI application that wraps existent PSGI
+    application and plays both side of application and servers. From the
+    servers the wrapped code reference still looks like and behaves exactly
+    the same as PSGI applications.
+
+    Plack::Middleware gives you an easy way to wrap PSGI applications with a
+    clean API, and compatibility with Plack::Builder DSL.
+
+  Plack::Builder
+    Plack::Builder gives you a DSL that you can enable Middleware in ".psgi"
+    files to wrap existent PSGI applications.
+
+  Plack::Request, Plack::Response
+    Plack::Request gives you a nice wrapper API around PSGI $env hash to get
+    headers, cookies and query parameters much like Apache::Request in
+    mod_perl.
+
+    Plack::Response does the same to construct the response array reference.
+
+  Plack::Test
+    Plack::Test is an unified interface to test your PSGI application using
+    standard HTTP::Request and HTTP::Response pair with simple callbacks.
+
+  Plack::Test::Suite
+    Plack::Test::Suite is a test suite to test a new PSGI server backend.
+
+AUTHOR
+    See "AUTHORS" file.
+
+SEE ALSO
+    PSGI
+
+LICENSE
+    This library is free software; you can redistribute it and/or modify it
+    under the same terms as Perl itself.
+
diff --git a/README.md b/README.md
deleted file mode 100644
index ffa69cac2..000000000
--- a/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-Plack - PSGI reference implementations and utilities
-
-## What are PSGI and Plack?
-
-PSGI is a specification of gateway interface protocol between Perl web applications and web servers, like Python's WSGI and Ruby's Rack. See [PSGI specification and FAQ](http://github.com/miyagawa/psgi-specs) for details.
-
-Plack contains reference implementations of PSGI servers and also has useful utility tools like Plackup (command line server and application launcher), Plack::Util (Useful utilities for server implementors) and Plack::Builder (DSL to quickly enable and configure Plack middleware in .psgi file).