Social graph api stuff

This guy has an interesting blog with some good ideas on the technology of social networking (amongst others). This is one discussion on the lack of a connection strength ranking in social graph api’s – 
Good discussion, but I can also imagine the abuses that could be make avaialble if such information were made available. Highly targeted spam anyone? 😉

(updated) – On a similar subject, and one I’ve put a lot of thought and ideas into over time- is this article on reputation systems. good read.