I remember.. and used... AOL chat, IRC, PowWow,(who remembers PowWow?) ICQ and even the Mudcat chatroom. I didn't quit them... it's just that everyone else did, and talking to myself is not always interesting. Facebook is a little different... partly because they have worked out how to sell ads. I have NO idea what SnapChat is, and won't be chasing it.
Google Plus is not doing too well, partly because it duplicates too many Facebook themes... and I can barely follow ONE social media! I really prefer to trade information in a forum like we are using right now on Mudcat. I can FIND earlier stuff easily and don't have to scroll thru all my 'friends' stories about their dog, tomatoes, or copied cartoons in order to find something relevant.