Find and compare public data on Google

Google added a new search feature that makes it easy to find and compare public data. So for example, when comparing Santa Clara county data to the national unemployment rate, it becomes clear not only that Santa Clara's peak during 2002-2003 was really dramatic, but also that the recent increase is a bit more drastic than the national rate. If you go to Google.com and type in [unemployment rate] or [population] followed by a U.S. state or county, you will see the most recent estimates. Once you click the link, you'll go to an interactive chart that lets you add and remove data for different geographical areas.