Short of ideas for your research assignment? Opposing Viewpoints contains a list of more than 400 controversial topics.
An online resource that includes articles from academic journals, newspapers, magazines; audio; videos; opinion essays; and primary sources on current controversial issues. A good source of topic ideas for papers and speeches.
Topic overviews, viewpoints, and other books and articles on a variety of topics.
Online encyclopedia:
For in-depth information on a subject, try a subject-specific encyclopedia.