I once had a discussion with a friend about the use of corporate blogging. I said it was a good for PR and feedback, he did not agree much. Well, whatever be the use, I am a great fan of the style of Jonathan Schwartz.
He admits in this post how his admin screwed up and apologises to Matt Mullenweg (the brilliant guy who brings us WordPress). Now I am sure that no PR department wrote or edited it but makes you feel that they listen. Meanwhile you can also watch his interesting interview with Scoble.