Jackie, I understand you've found FB a very useful tool, though things change.
It allows what Rick has mentioned.
Of cause that is not exclusive to FB and will happen on new platforms. And then things will change again.
Counter intuitively, FB may become useful for some business purposes when 80% of people lose interest and go else where (just a random thought there).
Quote taken from a not so good article, though it shows change happening.
''From the outset, Facebook has always been about social [not commercial] networking. As sponsored posts and Facebook ads have increasingly filled users' newsfeeds in recent years, there is a growing sense of scepticism, disillusionment and downright irritation.
This movement away from what made Facebook great is probably the strongest indication that the social network as a brand is losing its way.''
http://www.smh.com.au/digital-life/d...205-31zub.html