Wink is an interesting new search engine. It allows users to search across many "tagging" sites, such as Digg and Del.icio.us, and rate the results. However, it also searches Google, and allows users to "rate" those results. I wish Google had a feature like this. It allows something other than an algorithm to help me determine the most useful results for a search.
Do I think Wink has a bright future? Who knows... But the functionality certainly is interesting. The search engines could learn a thing or two from this idea. Could a "rating" system be another way to help fight search engine spam?