Friends vs. Followers?
Is there a place that explains the purpose of followers? I think I understand that friends are people who can call each other on Skype. But I'm getting followers and I'm not exactly sure what that means, since I already have an activity feed of people posting questions/notebook entries anyway, and all my posts are public. What does it mean to follow someone? Also it seems like some people just start following and others are asking permission. What's the difference? Thanks.