Podbridge, a new advertising/sponsor site for podcasters hopes to become THE place to go for ads in podcasts.
From their (beautiful) site:
Advertisers:More than 42 million iPod™ consumers put on-demand audio in the media mainstream. Don’t be left behind - target, measure and reach them with Podbridge.
Podbridge’s VC comes from Mayfield Fund and Worldview Technology Partners.  

Steve Rubel joined one of the largest PR firms, Edelman, and left the private PR firm, CooperKatz earlier this week.
Edelman has been hiring other well-known bloggers to help their clients secure a place in the blogosphere.
In September, the firm brought RedState.org blogger Mike Krempasky onboard to handle the Wal-Mart account. Krempasky founded the Web site [...]

While the casual style of blogging is so popular with political and ‘geek’ blogs, business blogs need to maintain a professional tone.
Exceptions:

Personal blog that represents a businessJeremy Zawodny, of Yahoo!, has a personal blog.  Because he’s a high-level blogger that also holds a high-level job at Yahoo!, his blog has become where you go to [...]