One of their biggest creations that’s still under the radar is Co-Op, a vertical search engine that allows you to customize your results. In other words, you can integrate an engine into your website, then refine the search results from the terms you type in, like tagging particular areas that the search turns up, etc. etc.

All this while making money off the advertisements. Pretty nice exchange.

My friend at Google’s done some great hacks with it (like using del.icio.us in conjunction), and I’ve done a little beta testing on it. Try it out if you can, it’s really neat: http://www.google.com/coop/