Where can I find large datasets open to the public?
If you are searching for a big dataset to start working on big data, below are the most famous free data sources on the web.
Just choose carefully based on your needs as you may find datasets with hundreds of Terabytes.
https://www.kaggle.com/datasets
http://www.assetmacro.com
http://usgovxml.com
http://aws.amazon.com/datasets
http://databib.org
http://datacite.org
http://figshare.com
http://linkeddata.org
http://reddit.com/r/datasets
http://thewebminer.com/
http://thedatahub.org alias http://ckan.net
http://quandl.com
http://enigma.io
http://www.ufindthem.com/
http://NetworkRepository.com - The First Interactive Network Data Repository
http://MLvis.com
http://data.opendatasoft.com OpenDataSoft catalog
http://archive.ics.uci.edu/ml/
http://crawdad.org/
http://data.austintexas.gov
http://data.cityofchicago.org
http://data.govloop.com
http://data.gov.uk/
http://data.medicare.gov
http://data.seattle.gov
http://data.sfgov.org
http://data.sunlightlabs.com
https://datamarket.azure.com/
http://developer.yahoo.com/geo/g...
http://econ.worldbank.org/datasets
http://en.wikipedia.org/wiki/Wik...
http://factfinder.census.gov/ser...
http://ftp.ncbi.nih.gov/
http://gettingpastgo.socrata.com
http://googleresearch.blogspot.c...
http://books.google.com/ngrams/
http://medihal.archives-ouvertes.fr
http://public.resource.org/
http://rechercheisidore.fr
http://snap.stanford.edu/data/in...
http://timetric.com/public-data/
https://wist.echo.nasa.gov/~wist...
http://www2.jpl.nasa.gov/srtm
http://www.archives.gov/research...
http://www.bls.gov/
http://www.crunchbase.com/
http://www.dartmouthatlas.org/
http://www.data.gov/
http://www.datakc.org
http://dbpedia.org
http://www.delicious.com/jbaldwi...
http://www.faa.gov/data_research/
http://www.factual.com/
http://research.stlouisfed.org/f...
http://www.freebase.com/
http://www.google.com/publicdata...
http://www.guardian.co.uk/news/d...
http://www.infochimps.com
http://www.kaggle.com/
http://build.kiva.org/
http://www.nationalarchives.gov....
http://www.nyc.gov/html/datamine...
http://www.ordnancesurvey.co.uk/...
http://www.philwhln.com/how-to-g...
http://www.imdb.com/interfaces
http://imat-relpred.yandex.ru/en...
http://www.dados.gov.pt/pt/catal...
http://knoema.com
http://daten.berlin.de/
http://www.qunb.com
http://databib.org/
http://datacite.org/
http://data.reegle.info/
http://data.wien.gv.at/
http://data.gov.bc.ca
https://pslcdatashop.web.cmu.edu/ (interaction data in learning environments)
http://www.icpsr.umich.edu/icpsrweb/CPES/
http://www.dati.gov.it
http://dati.trentino.it
http://www.databagg.com/
http://networkrepository.com