"The Center for Academic Integrity provides a forum to identify, affirm, and promote the values of academic integrity among students, faculty, teachers and administrators."

A series of tutorials created by librarians at Acadia University to teach you to distinguish the different forms of plagiarism and ways to avoid mistakes.

From Georgetown University

Keeping Current on Plagiarism, Cheating & Academic Integrity by Susan Herzog, Information Literacy Librarian, Eastern Connecticut State University

The Purdue University Online Writing Lab (OWL) offers this site explaining how students can avoid plagiarism. Provides a brief overview of contradictions in academic writing, actions that might be seen as plagiarism and guidelines for researching, quoting, paraphrasing, and deciding if something is common knowledge. Includes exercises and a brief bibliography.

This printable .pdf document from the University of California, Davis Office of Student Judicial Affairs defines what plagiarism is and offers guidelines for avoiding it.