Google is experimenting with new voting engine for the search results. Users have the following options:

• Like it?
• Don’t like it?
• Know of a better webpage?

It’s all experimental and in testing phase.

Emphasis is on the social note. However to work properly I believe it has to be tightly integrated into existing social networks. Ideally, search results should not be influenced by the whole internet community, but only by the preferences of the close friends group.