Plagiarism Stoppers: A Teacher's Guide: Places to go for help with student plagiarism, how to identify it, what to do when it happens and how to prevent it.
The Plagiarism Handbook: This book provides teachers and professors with the tools they need to combat the problem.
Writing: Plagiarism Advice for Lessons: This site offers teachers 18 suggestions they could adopt to teach students about plagiarism and how to avoid it.
Plagiarism and the Web: Ten practical suggestions for teachers trying to deal with plagiarism. Included are a number of suggestions which recognize that paper mills exist on the web (a short list is included) and then use that presence as a learning tool for the students.