Some of us consider ourselves to be pretty tech savy but have gaps in our understanding of social media terms tossed about. I'm blogging a link to an article I read that included some easy definitions of social media. Social Media Lingo. http://bit.ly/12csnea April 2, 2013.
By the way, B2B means business to business and B2C is business to consumer. Following that line of thinking, I guess librarians need more acronyms. :-) L2T - Librarian to Teacher; L2A - Librarian to Administrator; and L2S - Librarian to Student when their interactions with their stakeholders.