Molly picks up my post about recommendation systems and notes that she hates the ads on Facebook but likes Spotify. Exactly, the former is only selling ads, not recommendations of what other people like you liked. (Though imagine an ad engine that worked like that?!)
Anna D has notes from the unsymposium, including reputation networks, games and narrative. Gabrielle has three take away ideas. Hypertext and games, writing hypertext, and IBG (Internet before Google).