Another evidence package went up on the blog this am for social networking. You should read the first 20 pages or so...its understanding of the case is pretty solid.
One thought I've had on the case is that if you want to try being a bit more LDish in the case, cell phones, computers, and internet (social networks) make us all feel a bit more important which is one marketing reason they work. It is a way of ego promotion. We all feel like we are important people and we want others to know that. It's human nature. Also we want people to know how we feel or think about things--hence our willingness to blindly share openly on the internet in social networks.
Something to think through.