The Urban Dictionary gives us an illustrative definition of “Social Media” (which I’ve edited and healthified so I didn’t have to glaze over a bunch of pictures of donuts, see the original)…

Your electronic Second Life. Can be best described using examples:

Instagram — Here is a polaroid-esce photo of #almonds

Pinterest — Here is a recipe for almonds

Facebook — I like almonds

Twitter — I’m eating #almonds

LinkedIn — My skills include almond eating

YouTube — Here I am eating almonds

Foursquare — This is where I eat almonds