Found via Flickr
The library subscribes to a database called Opposing Viewpoints that is really helpful for finding information on controversial issues. However, sometimes it can be hard to think of a topic or lay out your argument for a persuasive paper. Procon.org can help you. You can either select a topic from the homepage or type in a subject to search. From there you can choose to look at the top ten arguments for the topic or delve deeper into the issue. It even has a page that shows you how to cite your work.