Most social network assue you know who your friends are and allow you to share info with your friends. How about the opposite? Something like a bookmarking app that tells me who my friends should be based on physical distance and recent common bookmarks?
It seems to me the main problem to me is that a lot of people are alone they because do not necessarily share interests with their colleagues and family members. Facebook is popular because it allows people to connect with people that they knew and therefore assume had something in common. Until people find out time has passed by and there is not really much to talk about. You can be a scientist and soon find your page polluted with somebody's horoscope. - a bookmarking system like http://radbox.me/ - when you bookmark something you tag with fixed categories - a way to sort/organize and rate own bookmarks using mouse drag and drop. - you have a profile and public pages showing your bookmarks only (can be used by a prof to share links with students for example) - Once logged in you can see other users nearby that bookmarked - independently - the same links, and filter then by location, gender, age, bookmark category (could compete with match.com too) - You can then choose to be notified when a given person bookmarks something new (like twitter) - You can check who is following your bookmarks. Massimo
