With google having 'been there, done that' with everything that you can do with fundamental search - are the engines moving on to better and better way of producing search results? Here's clusty (thanks to Sameet Mehta, Pune for the link) which featured in the Time 50 coolest websites.
While you are at it, you might want to take a look at Grokker which shows results in a circular clustered fashion (i actually found a few links on myself that i didnt know existed).
Here's me on Grokker (requires java) and me on clusty.