While I've always known that world building is an important part of writing fiction, (I've even got a Writer's Digest book sitting on the shelf with the same name) I didn't know that it can almost be a hobby in and of itself. To me, constructing the world around the characters always came after the idea for the story. If I needed characters to do something then the world would conveniently have the thing I needed right there. If I need something to happen to them then I'd create the world to allow for that as well. Not since my old Dungeons & Dragons days did I ever sit around and create a world just for the fun of it.
So it's with interest and a bit of skepticism that I'm poking around the internets looking at various world building sites. Initially, it strikes me as the same "To Blog or Not To Blog" argument. I see a lot of potential for sparking creative energy and driving a story towards a conclusion but I also see a lot of opportunity to put the cart before the horse. And in my little world, horses don't push.