Raj has a nice meaty post:
With millions of websites/weblogs, aren’t strong personalities required to win out? Name a few A-list bloggers that do not have “strong” (i.e., self-promoting) personalities. Okay, maybe Darren Rowse and Steve Pavlina. These two earn most of their income from revenue-producing websites (or just one in Steve’s case). The others above mostly earn their income from offline activities.