Recently, I read The Corporate Blogging Book by Debbie Weil and I really enjoyed it. The book makes a case for using blogs as communication tools in the business world.

This isn't a technical/how-to book, but it is helpful if you need some guidance in illustrating the value of organizational blogs, or if you need some ideas on their use.

The Corporate Blog Book also has it's own blog: BlogWriteForCEOs.com.