I like the article for what it doesn't do: namely, describe blogging as a frivolous hobby. Can be, sure. Shouldn't be, though, 'specially if you're paying someone to do it.
Corporate blogs, well-planned and professionally written, can and should:
- increase web traffic
- improved customer service
- increase referrals
- further develop your brand identity
- personify your company's products/service
Blogging is writing, folks. Corporate blogging should be handled by professionals, not penny-per-word junk content creators.