I wrote a story about ways to use the Bing start page a little while ago. Richard Allaway spotted this amazing Chrome extension: Earth View . Basically, every time you open a tab, you get a stunning satellite image. Great for sparking conversation, but also for nice Thunk starters. (and yes, they basically all are geography.... ;-) Update - this plug in has been updated to allow sharing of images.
Sharing stories of pedagogic adventures.