I'm surprised that cyoc.net (sort of like fiction branches or BEAdventure) but better interface and options) hasn't been mentioned around here that much and not recently. I just found out about it and it seems really good. I started adding some stuff to this story
Ty's Power.
It would be great to see more added to the various stories. I don't have the patience to write full stories and BEAdventure doesn't give you the freedom (other than SE choices) to create you own story directions.