My prior post discussed using the information in social networks to facilitate the serendipitous encounters that broaden our various networks. What if I knew in my real-life encounters who was a potential friend, business partner, or just a good conversation?
A current platform to build this is Foursquare, by extending it through populating it with social data from other sources. While the core Foursquare app shows you who else is checked into a place, additional integration with social data would allow you to act on this information in the real world in real-time. For example, if I am at a bar or the gym, I could see whether another person checked-in had an interest in X post or Y article which I also had found fascinating, had a common Facebook friend, or shared an interest. You would need refinement to deal with the obvious issues, but this would be a good start, and this would be a step toward the vision of creating something that facilitated the generation of social connections with those who you should meet who were also physically proximate.