From the A Word A Day newsletter for 02 Jan 2008:
commentariat (kom-uhn-TAR-ee-uht) noun
The group of people who provide opinion and analysis of events in the news.
[Blend of commentator and proletariat. The term was first noticed in a 1993
article in the Washington Post.]
Examples of people who comprise the commentariat: talk show hosts and
their guests, newspaper and magazine columnists, and political bloggers.
So I encourage all LISNewsterz to drop the childish and at-least-slightly-aliterate term blogosphere in favour of the much more intellectual term commentariat.