The one thing that is difficult for people is setting up a self hosted WP blog. Us here, myself, and other tech people know how it is done; however, most people

The one thing that is difficult for people is setting up a self hosted WP blog. Us here, myself, and other tech people know how it is done; however, most people don't know the ins and outs (let's be honest, SQL isn't brain surgery). Posterous will absolutely corner the market for socially aware businesses who want a one click solution to their blog / twitter / friendfeed / etc. I currently work in the Social Media space and I wish my clients had the foresight to jump on such a dead simple blogging platform. The export issue really isn't much of a problem either, set up a blog in tumblr or a hosted WP solution and just export it all there.