Blogging Sells, and Sells Out: "But as long as blogs remained on the commercial fringes, the playing field at least was relatively level. Audience was largely a function of reputation � for the frequency or quality or ideological appeal of the blogger's posts. Costs were low, and few bloggers were trying to make a living at it, so money wasn't an issue. It may not have been egalitarian, but it wasn't strictly hierarchical, either."

though it is probably a bit premature, he will ultimately be correct. At this point it would take a lot to create a "tipping blog" from scratch. But then again, it took a long time for people to get to this point.