Be aware, not afraid. Plagiarism is easy to avoid if you follow the tips offered here. When in doubt, cite your source!
What Is Plagiarism? A very user-friendly website from KidsHealth.org that explains plagiarism, shows examples, and gives tips on avoiding it.
Plagiarism.org - Tools, Technology, and Solutions to Stop Plagiarism. The Learning Center on this site contains some helpful definitions of plagiarism, tips on avoiding it, explanations of frequent misconceptions, and more.