Frequent - 3:10 am on Jun 29, 2006 (gmt 0)

I think you have a pretty decent concept. Certainly open to abuse... but everything is. Have you considered making the user vote automated?

For instance, if someone searches for "widgets" and clicks on a result but hits the back button within a given time frame (10 seconds for example) and tries another link it would be counted as a thumbs down. If they clicked on a result and didn't came back within, say 5 minutes, it would be counted as a thumbs up. (You could keep the actual time frames "top secret" and even vary them from day to day.)

This would also inadvertantly keep "good" MFA sites on the good side of the SERPs and gradually weed out the bad ones.

Just a thought.

Freq---