Right now there aren't too many dead people on Facebook. This is mainly based on the fact that the people who use it now are so darn young. However, it's almost inevitable that Facebook could literally become a graveyard.

It's being predicted that it could happen in either the 2060's or the 2130's according to new research.

The math is a little tricky but it's all based on whether or not Facebook continues to grow or goes on the decline much like all other social networks have. If it declines like most others we'll see more dead on the social network on the site near 2060.

If, for some reason it continues to succeed, then we'll still run into the same problem around the 2130's.

Perhaps they'll have to start doing that thing where they get rid of non-actives?

[Source]