Fun, safe alternative to YouTube. All the kid-friendly videos on the web collected in one easy to navigate site. Both entertaining and educational videos abound.
Older kids may not be impressed with the music & videos for preschoolers, but parents don't need to worry about kids stumbling across inappropriate material.
There are some videos which are TV commericals (eTrade talking babies) and I don't agree that all the viral videos archived on the site are appropriate for all ages (baby dancing to Beyonce's "Single Ladies" - cute baby but those lyrics? seriously?) but so much safer than YouTube.
There are great videos to look at with my son. He loves the animal videos. The only issue is that he loves super heros and I feel they are too violent for a 3 year old.
I love Kideos (more importantly my kids love it). They have pulled all the safe/fun/educational videos from Youtube and put them together on one site. They also organize all the videos in channels (my boys love the Sesame Street channel). I recommend this site to all parents of kids 2-10, and I think most parents will find the videos entertaining too.
P.S. Be sure to check out the "Where's Matt" video.