Created by the Library of Congress, Thomas provides information on bills, resolutions, activity in Congress, commitees, treaties, etc.
LegiStorm provides an up-to-date compilation and analysis of information on members of the US legislature, including their salaries, financial disclosures, trip expense reports, staffs' salaries, and trip sponsors.
Provides biographies and information on each member of the House and Senate, including commitee membership, room number, and telephone number. It also lists military officials, courts, and Federal departments and agencies.
Run by theCapital.net, a non-partisan group, this site provides links to Congressional information websites. This includes text of committe reports, House and Senate roll call votes, commitee schedules and more.
This is "the definitive source for researchers, students, journalists, and citizens interested in the U.S. Supreme Court. The Database contains over two hundred pieces of information about each case decided by the Court between the 1953 and 2008 terms."
Database of Supreme Court cases by month and year, plus lower court decisions, docket sheets, oral argument transcripts, and Supreme Court briefs where available. Supreme Court Opinions: Searchable database of Supreme Court opinions since 1893.