Every day I get multiple requests from Linked In members for me to recommend them. Problem is, I don't know any of these people. Yesterday I just cancelled my membership to make them stop.
Every day I get multiple emails from Facebook saying that I have 90 friend requests, and asking me if I know persons A, B, C, D, E, F, G, H, I, J, or K. Usually I'll know one, and Facebook should have that in their system. The other people are ones that lived in the same cities I did or went to the same university. Not exactly a small sample.
Twitter sends me emails about people I've already signed up to receive alerts, so that's fair. There's usually nothing of interest in a 140 character Tweet, though.
I don't know that Classmates.com is considered "social media", but it's close enough and irritating enough to qualify. I get emails from them almost daily, inviting me to see the new photos from somebody I don't know. They'll get the school and graduation year right, but most names they mention are fakes. They'll often say something like "Mary Anderson just posted a new photo". The thumbnail of the photo is blurry enough that it could be the Mary Anderson I dated in 7th grade, or it could be Benjamin Franklin.
None of the social media gives me enough to really make visiting worth my while. On Facebook I have to wade through hundreds of photos of kittens and wedding parties, recipes for Bundt cakes made from from tofu, stories from relatives about mowing the lawn that morning, and a zillion ads for wing nuts that are there only because I bought a 49-cent wing nut online that morning.
I think I'll call someone on the phone today. I don't believe that's called "media", but it's a lot more sociable.