Precipitate is an application from the Google Mac team that lets you search your online documents via the popular Spotlight feature available in OSX.

From the release…

That’s where Precipitate comes in. After you install Precipitate, you can use Google Desktop or Spotlight to find files online (such as those in your Google Docs list) just as you would find files stored on your Mac. Then, you can open them in your browser with a single click. Once Precipitate is set up, it stays out of your way, regularly getting the latest contents of your documents automatically, so you’ll never need to think about it — or where you store your information — again

This version supports Google Docs and Google Bookmakrs, with more features being teased at for future releases.