Re: Not sure the comparison is valid
Facebook is getting to the point where it is critical infrastructure as an identity provider and phone company.
Only for people who have no problem with being spied on, or who do not have a legal obligation to protect information. We have an explicit ban on the use of asocial media other than via our marketing department, and they are *very* sparse with what they put online as it's not our channel to reach clients (again, for reasons of privacy).