From The Official Google Blog

Want to find those IRS forms to get in your taxes on time? Need to figure out where to send your DMV fees, or find the phone number for your local parks and rec department? Google U.S. Government Search launches today -- it's a site on which you can 1) search across a huge index of U.S. Federal, state and local government websites via a single search box, and 2) stay up to date through personalized content feeds from government agencies and press outlets. Off you go.