I've just seen a link to Scribd, a publishing company that refers to itself as a "social publishing" company. Whatever that means - if it's not a cheap attempt to capitalise on the phenomenon of social networking - it's certainly yet another publishing option for indie games.
A quick search through the place shows results for Mouse Guard, Zombie Hero, Star Trek and others. Add it to your potential publishing list, along with Lulu, IPR, RPGNow and the Pirate Bay.
Although, maybe the last one isn't such a great idea.