Earlier today, I logged into Facebook this morning and was confronted by a whole slew of changes. It is jarring and confusing. So I shut it down. I much prefer the mobile app and the messenger, as they allow me to do the only thing Facebook is good for — messaging! I switched over to Google+ and found it less confusing. And warmer — folks were fast to respond to the status message I posted, though Google+ interface needs to be stripped down further for it become addictive.
Like Twitter. I use Twitter all the time because it is simpler, easier, real-time and always on! And I like Instagram because it is about photos visual experiences. And Foursquare because it is about location and locale discovery. Guess, there is something to be said about the complexity factor and social network fatigue.