they wont’ change “social graph” to “social network” becuase SNA (social network analysis) was en vogue a few years back, and now people are discovering undirected and directed graph structures and all hip on SNA again. Its good marketing by some, and poor fact checking by others. The reality is: graph theory, social network analysis, etc are a long standing field with a very good academic history. In an effort to define an area endemic to EVERYTHING involving human interaction (much less human/computer interaction), people coin a term, make it a concept, then make it This Weeks Geek Headline. Yawn. Next.