I couldn’t believe my eyes this morning when I ran a search on Google. If you are signed in, you can now promote results as well as leave comments. I had asked a Googler last year when they were going to meld Bookmark Sync (social ranking) to Google’s PageRank. This is equally good/better.
Google’s been wikified.
This appears to be a staged roll out, so here’s a screen shot showing where you can promote, remove or comment on a result:
There’s also a video on YouTube demonstrating Google’s SearchWiki in action.