All congressional voting records are available to the general public for free and are found at GovTrack.us, WashingtonPost.com and OpenCongress.org, among others. All of these databases enable users to track the votes on a particular bill or to follow the voting record of an individual senator or representative.
GovTrack.us is one of the most visited political websites in the United States. The site's goal is to create transparency in government, so that the general public can more easily understand what is going on. Users can register on the site to receive alerts and updates about specific bills and issues or about their local representatives.
The U.S. Congress Votes Database from the Washington Post has been tracking the voting records of senators and representatives since 1991 and is constantly being updated and expanded to offer users more valuable features. From the 112th Congress onwards, users can analyze senators' and representatives' voting records in terms of margin of victory, political party affiliations and caucus affiliations.
OpenCongress.org allows users to track a bill through all stages of the political process, from introduction to floor vote. Users can also use the site to find contact information for their senator or representative, including Facebook, Twitter, Skype, mailing address, email address and phone number.