Try the Updated Science.gov

Science.gov 5.0 includes a single-interface access science and technology information from 17 separate federal science organizations and searches:

• 200 Million Pages of U.S. Government Science Resources Now Available online
• Seven new databases and portals
• thousands of DOE patents (DOepatents )
• e-prints (Eprint Network)
• toxicology data for thousands of chemicals (HSDB Hazardous Substances Databank)
• TOXLINE (ToxicologyBibliographic Information)
• PubMed Central
• Cancer.gov
• EurekAlert! Science News

Also, for those interesting in unlocking more government data and information, get your opinions submitted to Show Us the Data by March 9, 2009. The project will result in a report that will recommend documents and data that the federal government should make more freely available to the public in usable formats.