We don't know what's coming next. America online was thumping
  its chest just like Zuckerberg is now. HUGE mergers, advertising
  revenues out the butt, "We've changed the planet" stuff.

  Compuserve was eaten by AOL long ago. So maybe you're right that
  FB might never fully "die" ... per se...
  [1]http://webcenters.netscape.compuserve.com/menu/

  I mean... Usenet is still alive. Academics the world over still
  use it; you almost NEVER see a "real scientist" on Facebook.
  They're still hanging out on Usenet newsgroups, publishing
  papers using TeX, just like they did in 1990. The world of
  Science operates on a different plane than we do.

  But, FB _will_ lose its shine and lustre and go the way of
  Compuserv eventually. It's the nature of things.   This group,
  these messages, someday, will be gone. Wiped from backup
  servers. They'll have a sticker on the front, "CLOUD" but it's
  backup servers. a more poignant example... and more dramatic:
  Minitel.
  [2]http://www.bbc.com/news/magazine-18610692
  ALL OF FRANCE was connected.
  All of it.
  Every last bit of France was Minitel.
  It reigned for DECADES... not... 'years' like Facebook. How long
  has facebook been king? 6-7 years? Maybe 8?

  It's peaking. Maybe I'm missing something. Maybe there's
  something new and special with Facebook (besides hype) that I'm
  missing. I'm not trying to be negative here, but I can't find
  the distinction just yet.

References

  Visible links
  1. http://webcenters.netscape.compuserve.com/menu/
  2. http://www.bbc.com/news/magazine-18610692