Pros and Cons

CQ Researcher Online http://library.cqpress.com/cqresearcher/

Britannica www.Britannica.com

Discovery News www.Discoverynews.com

Debatebase

Arguments, facts, and examples, both pro and con, of hundreds of topics

Debatepedia

"The Wikipedia of debates - an encyclopedia of pro and con arguments and quotes on critical issues" http://idebate.org/debatabase

Google Scholar http://scholar.google.com/

Internet Public Library http://www.ipl.org/

Pros and Cons of Controversial Issues

Presents both sides of current issues in a nonpartisan, unbiased format.

http://www.nytimes.com/roomfordebate

Room For Debate by the New York Times

Sweet Search http://www.sweetsearch.com/