Most children's entertainment sites feature primary color layouts, cute characters, simplistic animations and obnoxious sound bites. Leave it up to the Japanese with their own style of children’s media to lead these sites to the next level.

Toonami, a cartoon on The Cartoon Network, has come up with their own streaming media site, Toonami Jet Stream

Awesome design, cutting-edge Flash work, really cool.

The creator’s parent company, Vis Media, although newly formed, is poised to bring other Japanese media to the Net. Hopefully the days of the animated GIF and lame Flash game are soon over.

I guess my interest in this site lies in the fact it's a kid's site, but it isn't designed as such; yet the site is appealing to kids. They are sophisticated enough to understand "adult" design.

Taken further, the general adult public is often considered not sophisticated enough to appreciate and understand good contemporary design and are often handed the same old crap.

The moral of this story: don't underestimate your audience and don't be afraid to push the limits. If the work is done well, they'll get it.