Chad Dickerson shares his experiences with internal blogs at InfoWorld.
Posting this plan on a Weblog made three key things happen. First, it forced the team to strategically organize its IT initiatives into a coherent roadmap fit for broader internal consumption. Next, it created a sense of accountability for these initiatives within the IT team because we had collectively agreed on the initiatives and documented the process. Finally, posting our plan for the entire company to see helped foster a sense of accountability to our non-IT colleagues within the company.
Chad posts his thoughts on internal blogging as well.