Here is version 4 of Brian Solis' Conversation Prism, the visual map of the social media landscape. From the 1st Conversation Prism in August 2008 until now a lot of things have changed. The emerging social media landscape was visualised in a flower-like chart and now it's transformed into a kaleidoscope. So, if you still think that social media is Facebook, YouTube, Twitter, and Pinterest, you should study the new Conversation Prism.
via
via