I’ve been thinking a lot about social networking lately, partly because my job deals with it, partly because I’ve got some Obsessive-Compulsive tendencies. Then Mostly Lisa [http://www.mostlylisa.com/] wrote about the “big three” [http://www.mostlylisa.com/2008/05/06/the-rhythm-n-flow-of-the-2-point-ohs/]— Twitter [http://twitter.com/urbaneexistance]