Idea for Lucrative Internet Startup (why can't I think of anything orginal)
It would be just like google; actually it would be google. You would type in a query, press search or perhaps I'm feeling lucky. But instead of getting your own query, you would instead get the results returned by the query of the person before you, and the next person using the search would get your results! How crazy would that be.
I am almost positive something like this already exists, but if it doesn't I will totally do it.