I hear this a lot and in my opinion, a sizable minority of people can't mix their social and professional networks together. I can't have my business clients se

I hear this a lot and in my opinion, a sizable minority of people can't mix their social and professional networks together. I can't have my business clients see who I'm currently dating or pictures from my nephew's bar mitzvah. Not only is it unprofessional, but it can harm my future dealings with them. I know a lot of people have on Facebook have accepted invites from their boss or professional contacts and they stop participating in it as a social network and start using it as a glorified email/im system. If everyone did this, it would harm Facebook's ecosystem in the long run. Even with privacy controls and grouping people together, keeping mental context about who can see what at any given time is just too hard for most people. Seeing facebook.com and thinking social and linkedin.com and thinking professional is far easier. * Disclaimer - I used to work for LinkedIn in analytics as a product manager and did a lot of user interviews, but I may have drank the kool-aid.