Are the six friends who show up on your Facebook profile the ones who view your profile the most?

[Matt]

I think it might be based on overall interaction across your whole time on Facebook. For example, I've not contacted my ex for over a year but she often appears in the box of 6 friends, presumably because before a year ago there would have been a lot of interaction. I don't believe that totally explains it though, as others who I don't imagine I've ever had much contact with on Facebook seem to appear quite regularly. I've also noticed that some friends accounts seem to be 'glued' to the box for around a week, then vanish.