CorporateBlogging.Info calls itself Your Guide to Corporate Blogging. Any companies interested in business blogging need to check out this site; you'll find lots of valuable introductory and explanatory information on corporate communication via blogging.

Particularly valuable is the The Beginners' Guide to Corporate Blogging, a PDF aimed at teaching the basics of blogging to your CEO or marketing managers and help to create an understanding of the value of blogging within your organization.