Performancing.com has launched Performancing Network: A bloggers-for-hire marketplace. Nick Wilson calls it "craigslist meets job board for bloggers".
In short, it's a place for individual bloggers and companies wishing to hire professional bloggers. With the emergence of blog networks and corporate blogging, I think this might actually turn into an interesting idea. To get the program rolling, Performancing first asks its members to update their profile which is now beefed up with more ways to provide professional details about yourself including a way to announce yourself as "for hire". Additionally each jobs posted on Performancing Network allows you to vote on them (a la Digg) although I'm not certain if this is a good application of user voting engine.
Of course any job-board is only as good as the quality of jobs being posted. You can check out the jobs posted so far and judge that for yourself. Just keep in mind that Performancing Network is only a few days old.