Any time you need to track the status of a particular bill as it moves through the U.S. Congress, there’s OpenCongress.
From the ‘About’ section:
OpenCongress brings together official government data with news coverage, blog posts, comments, and more to give you the real story behind what’s happening in Congress. Small groups of political insiders and lobbyists already know what’s really going on in Congress. We think everyone should be an insider.
OpenCongress is a free, open-source, non-profit, and non-partisan web resource with a mission to make Congress more transparent and to encourage civic engagement. OpenCongress is a joint project of the Sunlight Foundation and the Participatory Politics Foundation.
One especially handy feature is that the site offers RSS feeds not only of a bill’s status, but also related news and blog coverage. I have feeds set up for all the sexual orientation-related bills working their way through Congress, since that’s what I cover. OpenCongress is a very good way to make sure you don’t miss any action on a bill of interest… especially if it’s a bill that does not get a lot of media coverage.