Data Mining - Related Websites

http://www.kdnuggets.com/
Popular site containing links to data sets used for KDD research. Also for data mining consulting, data mining jobs and advertising

http://www.ualberta.ca/~unisecr/policy/sec30.html
Code of Student Behaviour

http://kdd.ics.uci.edu/
UCI KDD Database Repository
Popular site containing links to data sets used for KDD research.