What got me started on it is being such a junkie for those sites, I was always writing guides/reviews/tips/etc. but I'd never be able to settle for any one site for long. Short attention span, maybe, LOL. but, anyway, I started blogging about it, and then forgot about that for awhile....and realized in the time I completely ignored it, I had a few thousand hits. Made me realize that this is 1.) a topic people are searching (albeit not a LOT) and 2.) one nobody else is really getting involved with.
I do definitely need to sneak out more on the sites themselves to leverage myself^^