I've seen a few things online that sound similar to this idea; http://editthis.info/choose_your_own_adventure/Main_Page http://editthis.info/choose_your_own_adv

I've seen a few things online that sound similar to this idea; http://editthis.info/choose_your_own_adventure/Main_Page http://editthis.info/choose_your_own_adventure/Main_Page is one; they mostly follow the "Choose Your Own Adventure"-meets-Wiki route.