Palindrom posted this site a long time ago and kept reminding me to look at it. I skipped it initially because its intended for children, but its useful. Its a more manageable subset of the information on Project Vote Smart, with a focus on where the politician's money comes from. At least these guys know whats important, right? Look up your Senator and read the list of PACs...

She writes:

I was doing some digging around for sites to use with my students and stumbled upon this. This is a site designed for kids but I think it is extremely interesting for adults too. You can click on a congress person and get a link to their website, information on how to contact them, and all kinds of other useful information like where they went to school, what degrees they have and how long they have been in office. You can also click on an election cycle and see who contributed to their campaign. This site also boasts break downs in the congress members demographically. The other cool thing is that you can click on a committee and see members, last meeting, jurisdiction, and staff members complete with phone numbers. Browse the site. I found it informative.

Information About Members of Congress