Uh, your sample is wayyyy different from mine. There are six posts in the last hour just by people I'm close to. I don't think Facebook is dying in any sense of the word among normal people.
Speaking of late to the party Facebook is just in the process of taking off here in Japan, it's already very popular and appears to be taking over from social networks like Mixi which have previously dominated here.
I don't have any numbers to back this up though, I'm just basing it on the change in usage I've seen here in the last two years. Certainly Facebook is alive and well here, even _useful_ if you can imagine it!
