The rest of the article is about economic models for how journalists may get paid, but I think that's a pipe dream as long as others are prepared to work for free. The real lesson from social media businesses remains, from MySpace on - be an owner, get other sucke....sorry, valued contributors - to contribute content for whuffie and change, and sell the f*cker to some dumb mon...strategic investor before you run out yourself.
I suppose an argument could be made for convenience when you're starting out. If, if, if you wanted to emulate the other bloggers there. A word of advice: emulate the ones who get paid. Better advice: start contributing comments on the independent blogs of your favorite bloggers and emulate them.