I've had several clients express interest in blogging for their businesses, so I'm going to start a running list of companies that are doing it well. Not trying to compete with Rick Bruner at Business Blog Consulting; he's got a phenomenal and comprehensive review of business blogs. I just want a short list of blogs sponsored by companies that sell products, so it won't include micro-businesses or intellectual-capital type companies. I'll add to this list as I come across them; if you're aware of others, please let me know!
XBox Live blog (unofficial blog)