In the USA there is a place called the Center for Cartoon Studies where you can go and study cartoons for two years. A bit like Bible college but without the Bible part. Or the… other parts. Anyway, one blogger had a look around inside and took some photographs. Quite an interesting little feature. (Thanks to the excellent Daily Cartoonist for the link).
There are courses you can go on here in the UK to study cartoons I think, but I don’t know anyone who has and I don’t know if they are any good.