The Jargon File (version 4.4.7, 29 Dec 2003):

blogosphere


    The totality of all blogs. A culture heavily overlapping with but not
    coincident with hackerdom; a few of its key coinages (blogrolling, 
    fisking, anti-idiotarianism) are recorded in this lexicon for flavor.
    Bloggers often divide themselves into warbloggers and techbloggers. The
    techbloggers write about technology and technology policy, while the
    warbloggers are more politically focused and tend to be preoccupied with
    U.S. and world response to the post-9/11 war against terrorism. The overlap
    with hackerdom is heaviest among the techbloggers, but several of the most
    prominent warbloggers are also hackers. Bloggers in general tend to be
    aware of and sympathetic to the hacker culture.