YaGoohoo!gle

Someone (I don't really know who) has built a service, YaGoohoo!gle that compares Yahoo and Google search results side-by-side. It's interesting to see how different a search for me, Jeramey Jannene, is between the two. They agree on the first item (this site), but then not much after that.

Feel free to link in the comments to any other terms you find that are quite different.