This list of public data sources are collected and tidyed from blogs, answers, and user reponses. Most of the data sets listed below are free, however, some are not. This list comes from https://github.com/caesar0301/awesome-public-datasets.
- Australian Weather: http://www.bom.gov.au/climate/dwo/
- Climate data: http://www.cru.uea.ac.uk/cru/data/temperature/#datter and ftp://ftp.cmdl.noaa.gov/
- Global climate data since 1929: http://www.tutiempo.net/en/Climate
- NOAA Bering Sea Climate: http://www.beringclimate.noaa.gov/
- NOAA climate datasets: http://ncdc.noaa.gov/data-access/quick-links
- WU Historical Weather Worldwide: http://www.wunderground.com/history/index.html
- American Economic Ass. (AEA): http://www.aeaweb.org/RFE/toc.php?show=complete
- EconData (UMD): http://inforumweb.umd.edu/econdata/econdata.html
- Internet Product Code Database: http://www.upcdatabase.com/
- World bank: http://data.worldbank.org/indicator
- AMPds: http://ampds.org/
- BLUEd: http://nilm.cmubi.org/
- COMBED: http://combed.github.io/
- Dataport: https://dataport.pecanstreet.org/
- ECO: http://www.vs.inf.ethz.ch/res/show.html?what=eco-data
- iAWE: http://iawe.github.io/
- HFED: http://hfed.github.io/
- Plaid: http://plaidplug.com/
- REDD: http://redd.csail.mit.edu/
- UK-Dale: http://www.doc.ic.ac.uk/~dk3810/data/
- CBOE Futures Exchange: http://cfe.cboe.com/Data/
- Google Finance: https://www.google.com/finance
- Google Trends: http://www.google.com/trends?q=google&ctab=0&geo=all&date=all&sort=0
- NASDAQ: https://data.nasdaq.com/
- OANDA: http://www.oanda.com/
- OSU Financial data: http://fisher.osu.edu/fin/osudata.htm
- Quandl: http://www.quandl.com/
- St Louis Federal: http://research.stlouisfed.org/fred2/
- Yahoo Finance: http://finance.yahoo.com/
- CRCNS: http://crcns.org/data-sets
- Gene Expression Omnibus: http://www.ncbi.nlm.nih.gov/geo/
- Human Microbiome Project: http://www.hmpdacc.org/reference_genomes/reference_genomes.php
- MIT Cancer Genomics Data: http://www.broadinstitute.org/cgi-bin/cancer/datasets.cgi
- NIH Microarray data: ftp://ftp.ncbi.nih.gov/pub/geo/DATA/supplementary/series/GSE6532/
- Protein structure: http://www.infobiotic.net/PSPbenchmarks/
- Protein Data Bank: http://pdb.org/
- Public Gene Data: http://www.pubgene.org/
- Stanford Microarray Data: http://smd.stanford.edu/
- UniGene: http://www.ncbi.nlm.nih.gov/unigene
- The Personal Genome Project: http://www.personalgenomes.org/ or https://my.pgp-hms.org/public_genetic_data
- 1000 Genomes: http://www.1000genomes.org/data
- UCSC Public Data: http://hgdownload.soe.ucsc.edu/downloads.html
- EHDP Large Health Data Sets: http://www.ehdp.com/vitalnet/datasets.htm
- Gapminder: http://www.gapminder.org/data/
- Medicare Data File: http://go.cms.gov/19xxPN4
GeoSpace/GIS --------
- EOSDIS: http://sedac.ciesin.columbia.edu/data/sets/browse
- Factual Global Location Data: http://www.factual.com/
- Geo Spatial Data: http://geodacenter.asu.edu/datalist/
- OpenStreetMap (a free map worldwide): http://wiki.openstreetmap.org/wiki/Downloading_data
- GeoNames (over eight million placenames): http://www.geonames.org/
- BODC (marine data of nearly 22,000 oceanographic vars): http://www.bodc.ac.uk/data/where_to_find_data/
- GADM (Global Administrative Areas database): http://www.gadm.org/
- twofishes (Foursquare's coarse geocoder): https://github.com/foursquare/twofishes
- Natural Earth (vectors and rasters of the world): http://www.naturalearthdata.com/
- tz_world (timezone polygons): http://efele.net/maps/tz/world/
- TIGER/Line (official United States boundaries and roads): http://www.census.gov/geo/maps-data/data/tiger-line.html
- Airlines Data (2009 ASA Challenge): http://stat-computing.org/dataexpo/2009/the-data.html
- Airports and their locations: http://www.infochimps.com/datasets/airports-and-their-locations
- Bike Share Data Systems: https://github.com/BetaNYC/Bike-Share-Data-Best-Practices/wiki/Bike-Share-Data-Systems
- Edge data for US domestic flights 1990 to 2009: http://data.memect.com/?p=229
- Half a million Hubway rides: http://hubwaydatachallenge.org/trip-history-data/
- NYC Taxi Trip Data 2013 (FOIA/FOIL): https://archive.org/details/nycTaxiTripData2013
- OpenFlights (airport, airline and route data): http://openflights.org/data.html
- RITA Airline On-Time Performance Data: http://www.transtats.bts.gov/Tables.asp?DB_ID=120
- RITA transport data collection: http://www.transtats.bts.gov/DataIndex.asp
- Transport for London: http://www.tfl.gov.uk/info-for/open-data-users/our-feeds
- U.S. Freight Analysis Framework: http://ops.fhwa.dot.gov/freight/freight_analysis/faf/index.htm
- Marine Traffic - ship tracks, port calls and more: https://www.marinetraffic.com/de/p/api-services
- Archive-it: : https://www.archive-it.org/explore?show=Collections
- Australia: https://data.gov.au/
- Australia: http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/3301.02009?OpenDocument
- Canada: http://www.data.gc.ca/default.asp?lang=En&n=5BCD274E-1
- Chicago: https://data.cityofchicago.org/
- FDA: https://open.fda.gov/index.html
- Fed Stats: http://www.fedstats.gov/cgi-bin/A2Z.cgi
- Guardian world governments: http://www.guardian.co.uk/world-government-data
- HUD: http://www.huduser.org/portal/datasets/pdrdatas.html
- London Datastore, U.K: http://data.london.gov.uk/dataset
- Glasgow, Scotland, UK: http://data.glasgow.gov.uk/
- Netherlands: https://data.overheid.nl/
- New Zealand: http://www.stats.govt.nz/browse_for_stats.aspx
- NYC betanyc: http://betanyc.us/
- NYC Open Data: http://nycplatform.socrata.com/
- OECD: http://www.oecd.org/document/0,3746,en_2649_201185_46462759_1_1_1_1,00.html
- RITA: http://www.transtats.bts.gov/OT_Delay/OT_DelayCause1.asp
- San Francisco Data sets: http://datasf.org/
- The World Bank: http://wdronline.worldbank.org/
- U.K. Government Data: http://data.gov.uk/data
- U.S. Census Bureau: http://www.census.gov/data.html
- U.S. American Community Survey: http://www.census.gov/acs/www/data_documentation/data_release_info/
- U.S. Federal Government Agencies: http://www.data.gov/metric
- U.S. Federal Government Data Catalog: http://catalog.data.gov/dataset
- U.S. Open Government: http://www.data.gov/open-gov/
- UK 2011 Census Open Atlas Project: http://www.alex-singleton.com/2011-census-open-atlas-project/
- United Nations: http://data.un.org/
- US CDC Public Health datasets: http://www.cdc.gov/nchs/data_access/ftp_data.htm
- Open Government Data (OGD) Platform India: http://www.data.gov.in/
- Challenges in Machine Learning: http://www.chalearn.org/
- ICWSM Data Challenge (since 2009): http://icwsm.cs.umbc.edu/
- Kaggle Competition Data: http://www.kaggle.com/
- KDD Cup by Tencent 2012: https://www.kddcup2012.org/
- Netflix Prize: http://www.netflixprize.com/leaderboard
- Yelp Dataset Challenge: http://www.yelp.com/dataset_challenge
- eBay Online Auctions: http://www.modelingonlineauctions.com/datasets
- IMDb database: http://www.imdb.com/interfaces
- Keel Repository: http://sci2s.ugr.es/keel/datasets.php
- Lending Club Loan Data: https://www.lendingclub.com/info/download-data.action
- Machine Learning Data Set Repository: http://mldata.org/
- Million Song Dataset: http://blog.echonest.com/post/3639160982/million-song-dataset
- More Song Datasets: http://labrosa.ee.columbia.edu/millionsong/pages/additional-datasets
- MovieLens Data Sets: http://datahub.io/dataset/movielens
- RDataMining R and Data Mining ebook data: http://www.rdatamining.com/data
- Registered meteorites on Earth: http://www.analyticbridge.com/profiles/blogs/registered-meteorites-that-has-impacted-on-earth-visualized
- SF restaurants dataset: http://missionlocal.org/san-francisco-restaurant-health-inspections/
- UCI Machine Learning Repository: http://archive.ics.uci.edu/ml/
- University of Toronto Delve Datasets: http://www.cs.toronto.edu/~delve/data/datasets.html
- Yahoo Ratings and Classification Data: http://webscope.sandbox.yahoo.com/catalog.php?datatype=r
- 40 Million Entities in Context: https://code.google.com/p/wiki-links/downloads/list
- ClueWeb09 FACC: http://lemurproject.org/clueweb09/FACC1/
- ClueWeb12 FACC: http://lemurproject.org/clueweb12/FACC1/
- Flickr personal taxonomies: http://www.isi.edu/~lerman/downloads/flickr/flickr_taxonomies.html
- Google Books Ngrams: http://aws.amazon.com/datasets/8172056142375670
- Google Web 5gram, 2006 (1T): https://catalog.ldc.upenn.edu/LDC2006T13
- Gutenberg eBooks List: http://www.gutenberg.org/wiki/Gutenberg:Offline_Catalogs
- Hansards: http://www.isi.edu/natural-language/download/hansard/
- Machine Translation: http://statmt.org/wmt11/translation-task.html#download
- SMS Spam Collection: http://www.dt.fee.unicamp.br/~tiago/smsspamcollection/
- USENET corpus: http://www.psych.ualberta.ca/~westburylab/downloads/usenetcorpus.download.html
- WordNet: http://wordnet.princeton.edu/wordnet/download/
- 2GB of photos of cats: http://137.189.35.203/WebUI/CatDatabase/catData.html
- Face Recognition Benchmark: http://www.face-rec.org/databases/
- ImageNet: http://www.image-net.org/
- Time Series data Library: https://datamarket.com/data/list/?q=provider:tsdl
- UC Riverside Time Series: http://www.cs.ucr.edu/~eamonn/time_series_data/
- China Hotel Checkin/out data: http://www.360doc.com/content/13/1105/13/7863900_326788919.shtml
- CMU Enron Email: http://www.cs.cmu.edu/~enron/
- Facebook Social Networks (since 2007): http://law.di.unimi.it/datasets.php
- Facebook100 (2005): https://archive.org/details/oxford-2005-facebook-matrix
- Foursquare (2010,2011): http://www.public.asu.edu/~hgao16/dataset.html
- Foursquare (UMN/Sarwat, 2013): https://archive.org/details/201309_foursquare_dataset_umn
- General Social Survey (GSS): http://www3.norc.org/GSS+Website/
- GetGlue (users rating TV shows): http://bit.ly/1aL8XS0
- GitHub Archive: http://www.githubarchive.org/
- ICPSR: http://www.icpsr.umich.edu/icpsrweb/ICPSR/index.jsp
- Mobile Social Networks (UMASS): https://kdl.cs.umass.edu/display/public/Mobile+Social+Networks
- PewResearch Internet Project: http://www.pewinternet.org/datasets/pages/2/
- Social Networking: http://www.cs.cmu.edu/~jelsas/data/ancestry.com/
- SourceForge Graph: http://www.nd.edu/~oss/Data/data.html
- Titanic Survival Data Set: https://github.com/caesar0301/awesome-public-datasets/blob/master/Datasets/titanic.csv.zip
- Twitter Graph: http://an.kaist.ac.kr/traces/WWW2010.html
- UC Berkeley's D-Lab Achive: http://ucdata.berkeley.edu/
- UCLA Social Sciences Data Archive: http://dataarchives.ss.ucla.edu/Home.DataPortals.htm
- UNIMI Social Network Datasets: http://law.di.unimi.it/datasets.php
- Universities Worldwide: http://univ.cc/
- UPJOHN for Employment Research: http://www.upjohn.org/erdc/erdc.html
- Yahoo Graph and Social Data: http://webscope.sandbox.yahoo.com/catalog.php?datatype=g
- Youtube Graph (2007,2008): http://netsg.cs.sfu.ca/youtubedata/
- CrossRef DOI URLs: https://archive.org/details/doi-urls
- DBLP Citation dataset: https://kdl.cs.umass.edu/display/public/DBLP
- NBER Patent Citations: http://nber.org/patents/
- NIST complex networks data collection: http://math.nist.gov/~RPozo/complex_datasets.html
- Protein-protein interaction network: http://vlado.fmf.uni-lj.si/pub/networks/data/bio/Yeast/Yeast.htm
- PyPI and Maven Dependency Network: http://ogirardot.wordpress.com/2013/01/31/sharing-pypimaven-dependency-data/
- Scopus Citation Database: http://www.elsevier.com/online-tools/scopus
- Stanford GraphBase (Steven Skiena): http://www3.cs.stonybrook.edu/~algorith/implement/graphbase/implement.shtml
- Stanford Large Network Dataset Collection: http://snap.stanford.edu/data/
- The Koblenz Network Collection: http://konect.uni-koblenz.de/
- UCI Network Data Repository: http://networkdata.ics.uci.edu/resources.php
- UFL sparse matrix collection: http://www.cise.ufl.edu/research/sparse/matrices/
- UNIMI Large Web Graph: http://law.di.unimi.it/datasets.php
- WSU Graph Database: http://www.eecs.wsu.edu/mgd/gdb.html
- 3.5B Web Pages: http://www.bigdatanews.com/profiles/blogs/big-data-set-3-5-billion-web-pages-made-available-for-all-of-us
- 53.5B Web clicks: http://cnets.indiana.edu/groups/nan/webtraffic/click-dataset
- CAIDA Internet Datasets: http://www.caida.org/data/overview/
- ClueWeb09: http://lemurproject.org/clueweb09/
- ClueWeb12: http://lemurproject.org/clueweb12/
- CommonCrawl Web Data: http://commoncrawl.org/the-data/get-started/
- Dartmouth CRAWDAD Wireless datasets: http://crawdad.cs.dartmouth.edu/
- OpenMobileData (MobiPerf): https://console.developers.google.com/storage/openmobiledata_public/
- UCSD Network Telescope: http://www.caida.org/projects/network_telescope/
- Academic Torrents: http://academictorrents.com/
- Datahub.io: http://datahub.io/dataset
- DataMarket: https://datamarket.com/data/list/?q=all
- Harvard Dataverse: http://thedata.harvard.edu/dvn/
- Statista: http://www.statista.com/
- Freebase: http://www.freebase.com/
- Amazon: http://aws.amazon.com/datasets
- Archive.org Datasets: https://archive.org/details/datasets
- CMU JASA data archive: http://lib.stat.cmu.edu/jasadata/
- CMU StatLab collections: http://lib.stat.cmu.edu/datasets/
- Data360: http://www.data360.org/index.aspx
- Datamob.org: http://datamob.org/datasets
- Google: http://www.google.com/publicdata/directory
- infochimps: http://www.infochimps.com/
- KDNuggets Data Collections: http://www.kdnuggets.com/datasets/index.html
- Numbray: http://numbrary.com/
- RevolutionAnalytics Collection: http://www.revolutionanalytics.com/subscriptions/datasets/
- Sample R data sets: http://stat.ethz.ch/R-manual/R-patched/library/datasets/html/00Index.html
- Stats4Stem R data sets: http://www.stats4stem.org/data-sets.html
- StatSci.org: http://www.statsci.org/datasets.html
- The Washington Post List: http://www.washingtonpost.com/wp-srv/metro/data/datapost.html
- UCLA SOCR data collection: http://wiki.stat.ucla.edu/socr/index.php/SOCR_Data
- UFO Reports: http://www.nuforc.org/webreports.html
- Wikileaks 911 pager intercepts: http://911.wikileaks.org/files/index.html
- Yahoo Webscope: http://webscope.sandbox.yahoo.com/catalog.php
- DataWrangling: http://www.datawrangling.com/some-datasets-available-on-the-web
- Inside-r: http://www.inside-r.org/howto/finding-data-internet
- Quora: http://www.quora.com/Where-can-I-find-large-datasets-open-to-the-public
- Reddit: http://www.reddit.com/r/datasets
- RS Collection 100+ : http://rs.io/2014/05/29/list-of-data-sets.html
- StaTrek: http://hsiamin.com/posts/2014/10/23/leveraging-open-data-to-understand-urban-lives/