Being back in University I get to see more and more data sets. Origninally I wanted to use the data sets category of my blog to provide an unordered list of these publicly available data sets sort of as a personal reminder. For some reason I never really did that but I am now about to change that.
To start I have nothing special and something you all should already know. It is the TREC data set. There is the Text retrieval conference and they make many data sets publicly available so that people can study and run tests on them .
You can find the data sets and the following list at: http://trec.nist.gov/data.html

• Versions of trec_eval
• Ad hoc Test Collections
• Web Test Collections
• Blog Track
• Chemical IR Track
• Confusion Track
• Enterprise Track
• Entity Track
• Filtering Track
• Genomics Track
• HARD Track
• Interactive Track
• Legal Track
• Million Query Track
• Novelty Track
• Relevance Feedback Track
• Robust Track
• Query Track
• Question Answering Track
• Session Track
• SPAM Track
• Terabyte Track
• Web Track