In an age when students gravitate to online sources for research--and when tremendous amounts of both reputable and questionable information are available online--many have come to regard the Internet itself as a culprit in students' plagiarism. Some teachers go so far as to forbid students from researching online, in the mistaken assumption that if students are working from hard-copy sources only, the problem will disappear. The authors believe that an approach far different from either warnings and punishment or attempts to curtail online research is warranted. Teachers who wish to prevent plagiarism should devote extensive instruction to the component tasks of writing from sources. In this article, the authors offer several strategies on how teachers can discourage plagiarism among their students.