I found a webcomic that's actually--get this--intelligent; while not all webcomics are crap, many of them are little more than crass, lowbrow humor. This one is a bit more sophisticated.
If you're in to science-fiction, science, philosophy, psychology, transhumanism, artificial intelligence, cyberpunk, or anything like that, you'd probably like this comic; it's smart, it's funny, and it just all-around works.