Sadly, I'm behind schedule tonight and don't have much time to rant and rave about this comic... just trust me that it's great.
http://www.goblinscomic.com/archive/The comic seems to have two main branches -
One branch follows a small tribe of goblins that is trying to avoid being killed off by groups of adventurers. The goblins possess a surprising amount of "meta-game" knowledge about their place in the universe but that doesn't stop them from trying to survive.
The other branch follows the exploits of a band of adventurers that almost, but not quite, decided to attack the goblins. Over the course of the comic this band of adventurers has really become quite fleshed out and fully realized as interesting characters.
I can't recommend this one enough, really. If you have ever played any RPG (or even if you haven't but you enjoy fantasy tropes) then this is a must-see comic.