Youtube isn't the only game in town, even though it's got a pretty comprehensive collection. If you want to check out some other video sites, be my guest:
Metacafe -- http://www.metacafe.com
Vimeo -- http://www.vimeo.com
Yahoo Video -- http://video.yahoo.com
Imeem -- http://www.imeem.com
Flickr -- http://www.flickr.com
Photobucket -- http://photobucket.com/recent/videos
Rediff -- http://is.rediff.com
Daily Motion -- http://www.dailymotion.com
Funny or Die -- http://www.funnyordie.com
Ebaums World -- http://www.ebaumsworld.com
College Humor -- http://www.collegehumor.com
GameTrailers -- http://www.gametrailers.com