Comments, bumping entries to the top, and removing. When you hit the X it disappears in a poof of smoke. - Benjamin Golub

I saw a demo of this some time ago...kinda feels like FF. - Hao Chen

Hopefully this thing isn't persistant, and can't be abused to bury sites permanently. - Mo Kargas

Presumably this is personalized for those with Search History enabled. I'd be surprised if individual users have that much power over global rankings. - LogEx

So like Microsoft's uRank: http://urank.viveri.com/signup... - Jordan Hofker

It's an experiment that we ran (or is running) for some users: http://www.google.com/experim... + http://www.google.com/support... - John μller