In broad terms, I posit culture is where the social - groups of individuals interacting - meets media/technology.
There are plenty of technologists with weblogs; the social sciences people jumped on board about 6 to 9 months ago (in force anyways, and from where I am sitting). Journalists got invited to a fight, and the marketing world has been flexing it's muscle lately as well.
What a joy it is to find the culture wonks getting in on the conversation!
More links to come!
(And thanks, Oblivia for the tip!)
(And Mr. McCracken, sorry for using the word "wonk". I should have said "cultural anthropologists". ;)