Well, if you're British I could understand as people tell me it's all on MTV, but here, it's pretty much unknown. I love Weebl and Bob. The flash animation and the plot is so simple, but great.

Best cartoons:
Hentai
Bob's week in France (all of them, especially the one where he mets Kevin, the french stripper)
Germs
Award
FF7
Wee-lo
Elvis (I'm Elvis 2/3s Donkey!)
Clowns
Hol (the newest one. Oh my god, Apple Dave = gold. He's been busy all day making your mum hornaaaaay!)

There are probably more, but I forgot.