This course will become read-only in the near future. Tell us at community.p2pu.org if that is a problem.
Google will probably give us free email forever, Yahoo should keep on hosting all our photos and maybe Facebook will facilitate our social interaction for the rest of time.
Or maybe Facebook will go bust, Google will turn out to be evil and Yahoo will find a new space they can be competitive in?
No one knows? But what we do know, they currently have a lot of our data!