Social media jumbles all our social circles together, where we used to keep them separate by physical location. Every application seems to assume I have one list of friends. In reality, I have friends among gaming contacts, friends among political junkies, friends from work, friends from the internet, friends from college, friends from church, friends from my old apartment building. They may have nothing in common with each other, and indeed may indeed be offended by mutually exclusive behaviors on my part. Interacting with all of them at once is awkward at best.

Perhaps an ability to organize and tag friends (and posts) by circle would help.