Path has been used by my girlfriends family for the past six years as their familial social network. They all just follow each other and because they don't use it for anything else it's a perfect little community for sharing memories. It was hard for them to cope with the fact that it's all getting shut down after six years using it.

Makes you wonder why smaller family or close-friends type social networks don't work. I guess the value isn't there to build it because it can't sprawl in the same way as other social networks.