It’s a bit dated, but JESS3 re-released their assessment of the GeoSocial Networking environment in an info-graphic. Though the data is similar to its original graphic of the GS universe, the latest shows the data in a number of usable formats. Below is a slideshare presentation with a number of pictorial depictions.
[slideshare id=8158269&doc=jess3geosocialuniverseremixdeck-110518133007-phpapp02-110531025112-phpapp02]
Dan Elder, MKMP
Topsarge Business Solutions
@dandotelder