Will heartbeat sharing be the new social gesture? Aggregating heartbeats can be an interesting social gesture. And subscribing to the aggregate heartbeat of a group can be an interesting new way of connecting with it.

Social networks with a purpose. They have a social graph even if we didn’t notice.

They are social places, not networks Even though the connections of each individual user are his social network, these sites (Facebook, Twitter, Linkedin, etc.) are not social networks. They are social networking places.