For a great article on how to advise corporate clients on legal issues concerning company blogs, see: As Blogging Grows, So Do Its Do's and Don'ts by Alysa N. Zeltzer and John E. Villafranco, Internet Law & Strategy, Feb. 20, 2007. The article mentions such items as:
* Considering how the blog will effect the company's document discovery and retention obligations
* Establishing a corporate blogging policy and making sure employees are complying. The policy should cover such issues as preventing defamation suits and preventing other information damaging to the company from getting on the blog.
*Being mindful of making representations in violation of consumer protection laws
*Being mindful of privacy and information security laws