http://www.wiu.edu/users/mfbhl/wiu/plagiarism.htm

http://www.library.dal.ca/killam/instruct/detect.htm (detecting)

http://newark.rutgers.edu/~ehrlich/plagiarism598.html (policies)

http://www.howoriginal.com/ (free service to detect plagiarism)

http://www.plagiarized.com/index.shtml

http://www.rbs2.com/plag.htm (Legalities)