Thank you for this valuable post and all the links to more information.

I prefer Patti Anklam's Crowd SM for the reason she states: "which could encompass the ways that social media are used to promote causes, but also to respond to crises and natural disasters, to call up collective wisdom, or to stream events" http://www.pattianklam.com/2010/04/the-fourth-sm-personal-sm/