**Movies Recommendation**:

* *MovieLens* - Movie Recommendation Data Sets http://www.grouplens.org/node/73
* *Yahoo!* - Movie, Music, and Images Ratings Data Sets http://webscope.sandbox.yahoo.com/catalog.php?datatype=r
* *Jester* - Movie Ratings Data Sets (Collaborative Filtering Dataset) http://www.ieor.berkeley.edu/~goldberg/jester-data/
* *Cornell University* - Movie-review data for use in sentiment-analysis experiments http://www.cs.cornell.edu/people/pabo/movie-review-data/

**Music Recommendation**:

* *Last.fm* - Music Recommendation Data Sets http://www.dtic.upf.edu/~ocelma/MusicRecommendationDataset/index.html
* *Yahoo!* - Movie, Music, and Images Ratings Data Sets http://webscope.sandbox.yahoo.com/catalog.php?datatype=r
* *Audioscrobbler* - Music Recommendation Data Sets http://www-etud.iro.umontreal.ca/~bergstrj/audioscrobbler_data.html
* *Amazon* - Audio CD recommendations http://131.193.40.52/data/


**Books Recommendation**:

* *Institut für Informatik, Universität Freiburg* - Book Ratings Data Sets http://www.informatik.uni-freiburg.de/~cziegler/BX/


**Food Recommendation**:

* *Chicago Entree* - Food Ratings Data Sets http://archive.ics.uci.edu/ml/datasets/Entree+Chicago+Recommendation+Data


**Merchandise Recommendation**:

* *Amazon* - Product Recommendation Data Sets http://131.193.40.52/data/


**Healthcare Recommendation**:

* *Nursing Home* - Provider Ratings Data Set http://data.medicare.gov/dataset/Nursing-Home-Compare-Provider-Ratings/mufm-vy8d
* *Hospital Ratings* - Survey of Patients Hospital Experiences http://data.medicare.gov/dataset/Survey-of-Patients-Hospital-Experiences-HCAHPS-/rj76-22dk


**Dating Recommendation**:

* *www.libimseti.cz* - Dating website recommendation (collaborative filtering) http://www.occamslab.com/petricek/data/


**Scholarly Paper Recommendation**:

* *National University of Singapore* - Scholarly Paper Recommendation http://www.comp.nus.edu.sg/~sugiyama/SchPaperRecData.html