YouTube
The Amazing YouTube Tools Collection
Hulu – owned by NBC
Google Video
Yahoo! Video
Bing – move the mouse over search results to play a sample
Metacafe
DailyMotion
Evertube.Com
Searchforvideo.com
Lycos
AOL Video Search
Gee Videos
CollegeHumor Videos
FunnyPlace.org
StupidVideos.com
BuzzHumor.com
Spike User Video
Crackle
MySpace Videos
Wimp.com – some great videos!