Social Coordinates

We are pursuing social coordination to go beyond the awareness provided by social networks, allowing people to do things together. We wish to generalize point tools such as Evite, Meetup, FourSquare, and the match-making of Xbox Live. We have built a query system where users declare predicates on People, Places, Times, and Activities and the system solves for missing coordinates. Other ideas include inferring user intent, and doing proximity-based coordination of people.