[stoney]

Yes, but I don't use facebook because my Grandma's on it (well, actually she isn't, but if she was it wouldn't matter).

If I found a new social network that I thought offered something new I would start using that in parallel to facebook. Then I'd use the new one more as more people moved over, until eventually facebook just became a way of emailing my grandma.

A lot of these facebook killer conversations seem to be based on the idea that I'm only going to use one social network. I'd argue that's not true at all.