GoAnimate is a tool that can be used to simplify animation. No download required and registering is completely free. However, to get all the cool features, you have to pay, which I think is pretty lame. Good website for starters. I do not recommend this for professionals, though, or, like MegaAdam explained, those who'd rather draw their own characters. Overall, good website, but can do without the "money-grubbing". However, I do prefer real animation.