Here are a following list of links to blog and website that can give you a clearer idea on the use and benefits of internal blogs.
Betterbusinessblogging is a comprehensive website that will give you some really useful advices on benefits of the use of internal blogs for project teams as well as some reflexions on how to start and step up your own business blog.
Blogs benefits and use of blogs by teams
Information sharing and internal blogs
An interesting article from Matias Fernandez Duttom, a PR strategist and management consultant, specializing in social technologies:
Charlene Li from the Forrester Reseach Company has written a comprehensive document on best guide lines to start your business blogs.
An example of guidelines by the Thomas Nelson Company
Thomas Nelson Blogging Guidelines
An interesting article published on December 22, 2004 by the Financial Times giving some example about internal blog can be found in the library database and some extracts can be found through the following link:
FT highlights example of blogs for internal communication
A useful review of 7 blogging tools for business blogs:
The following websites are companies providing enterprise solution for internal business blogs:
Some hosted blog solutions
www.wordpress.com
www.typepad.com
www.blogger.com