The whole point of social media is so we can digest snippets of information which allows the sender to get their point across, while the receiver understands the message. Of course, this advances once engagement is established.
Keeping in my mind the same concept, those of us who would like to take in information about social media would also like to do so in a quick and informative way. This is potentially why infographics are so popular and tend to form parts of presentations, proposals and blog posts for that matter :)
I personally love the infographic below, it it gives you snap shot of the main social media networks that are around today. It's compiled by the good people at Leverage.
We will aim to post an updated version of this every six months... so sign up here to get the latest one!