i love kidmango because it has safer youtube videos that all kids can watch because there are different channels for different age groups. me, my friends, and my counsins all love it. i recommend it to everyone.
Lots of good stuff - from fun cartoons to educational live-action mini-movies. The biggest downside at the moment are the commercials (which, compared to other sites, are actually pretty minimal) and the tough-to-navigate controls. But, it's still in beta, so I'm sure that will improve! Overall, a very fun and VERY safe site, with lots of family-friendly content. If your child is old enough for PBS Kids, s/he's old enough for KidMango!