I saw over at techcrunch a new site has launched called WeShow that has a very similar mission to the sifts. Have the users vote on videos to weed out the crap. I have signed up and their voting system is a little awkward, you don't actually up or down vote a video, you rank the videos in a category from best to worst. Also they have a most viewed list similar to youtube, etc but I am not sure if this is based on the total video views or how many views at weshow. Interesting site and I am still messing around to get a feel for it but though maybe some others would like to try it out and give their opinions on it. You know what they say, know your enemy.