Wish Lists for P2P
Don has an interesting idea.
Makes me think of the idea to subscribe to keyword(s) on a blog where you receive posts that hopefully have to do with a subject you’re interested in. Categories wouldn’t be sufficient because a person’s name, for example, could appear in multiple categories and you have no idea what category to subscribe to.
Update: Richard has always had good ideas on the topic of SocialSoftware. He aggregates his posts here