I think I might have around 20 friends on FB - it has never appealed to me and I might look at it a couple of times a week at most. I enjoy seeing updates from family but don't get the compulsion to post photos of where you are and what you are doing at every turn. I have one relative who must be on it all day long posting every conceivable thing that strikes her fancy. I am discovering that some of the groups are very helpful - in my case, a local gardening group.