Google SketchUp Teacher Guide full of fun activities.
Google Squared: a Complete Guide, a recent post on Tom Barrett's wonderful blog.
Google liberalises Google Docs
Google wrote: "A couple weeks ago, the Google Docs team launched a multi-file uploader to make it much easier for you to put files into the cloud. Today we’re launching a new feature to make it much easier to get your content out: “Convert, Zip and Download.”
More tips for Google use can be found at these sites:
100+ Google Tools that will Save you Time in Schools
This blog has a number of posts relating to Google tools.