Are you unsure of what constitutes plagiarism? When should you quote? What is common knowledge? How do you paraphrase? Here are some interactive quizzes and tutorials that can help you avoid committing plagiarism:
Video presentations:
http://liontv.blip.tv/file/621706/
Interactive tutorials:
http://www1.cpcc.edu/library/research-tools/DrCiteRight/library/research-tools/DrCiteRight/DCR-movie
http://bcs.bedfordstmartins.com/plagiarismtutorial/default.asp (requires free registration)
http://library.camden.rutgers.edu/EducationalModule/Plagiarism/whatisplagiarism.html
http://library.acadiau.ca/tutorials/plagiarism/
http://library.villanova.edu/app/Web/userfiles/file/AIGateway/quizCommonKnowledge.htm
http://library.villanova.edu/app/Web/userfiles/file/AIGateway/quizParaphrase.htm