As dougt would say, "wow, just wow".
Tafiti - silverlight plus search. Try it.
• Go to http://www.tafiti.com
• Enter a search query
• Drag interesting results to the shelf on the right. Each box on the shelf can be used to save a related set of results. Shelf contents can be saved and shared.
• Use the carousel at the bottom left to do different types of searches (image, blog, etc.)
• Visualize your results using the Tafiti Tree View
Not sure I'm ready to make it my default search, but the Tree view is a very interesting way to look at search results. I'm looking forward to seeing where this goes.