Google Desktop Beta
Google has launched yet another cool product today. Google Desktop searches files on your computer using the familiar Google.com interface. With Google Desktop, you can search e-mails from Outlook, Word docs, Excel docs, and web pages you've visited.

And to make it even cooler, if you search via Google.com, your Google Desktop results are featured as the first item in the Google search results (i.e. "982 results on your computer"). Wow!

The feature is in Beta and can be downloaded here.