Some of my favorite online resources!

THOMAS is a great source of information if you need to find out what progress a specific bill has made through Congress and who supports it and what it is about. I use it all the time at work, and it is a great resource for anyone doing research in legislative politics.

This site must be the end all and be all of political science indicies. They have an index of pages for almost any political science or governmental topic you would like to research!

If the University of Michigan doesn't have it, you can probably find what you need at the USIA site. This site branches out and covers a number of areas, however, the links primarily focus on United States Political Science.