http://www.liquidgeneration.com is one of the best cartoon sites. they have weekly flashes, including the movie poster game, suck my news weekly, and who's , plus ecards, sabotages, and ultra funny flash movies poking fun at all sorts of people. my favorite flash site ever!
Yeah I definitely recommend Albino Black Sheep. Most of the movies are so completely random that they're funny. But my favorite, which actually makes some sense but is still funny enough to make me damn near piss my pants, is: The End of the World