I only do FB, LJ and DW. Of these, FB annoys me by messing up my feed, hiding things that people have posted and generally just being crap at letting me read what I want to read without their algorithm getting in the way. I use FB to keep up with people I'd otherwise lose contact with, otherwise I might be tempted to drop it. I've tried Tumblr and Twitter, but they just don't interest me enough *shrugs*.

And yeah, I don't like them snooping and recommending me things. YouTube does this too, and it can be annoying. I'd rather go looking. It makes me wonder if the younger generations are used to being fed things rather than being taught how to look for things? I truly hope not because that could be very dangerous. If all you see are things that you agree with, how will you ever learn about other people's POV, whether you agree with them or not?