Blogosphere is a collective term encompassing all blogs and their interconnections. It is the perception that blogs exist together as a connected community (or as a collection of connected communities) or as a social network. History The term was coined on September 10, 1999 by Brad L. Graham, as a joke. It was re-coined in 2002 by William Quick, and was quickly adopted and propagated by the warblog community. The term resembles the older word logosphere (from Greek logos meaning word, and sph… (More on Blogosphere)