Corporate Blogging Policies
With more corporations either encouraging or tolerating employee blogging, and the various incidents where employees have been fired for inapropriate blogging - it was inevitable that businesses would adopt blogging policies. To some extent, it is an evolution or extension of technology use policies (the approach I prefer rather than separate email, computer use, and other policies).
They are useful for making the ground rules between employer and employee clear.
The Between Lawyers blog has a good entry on blogging policies that compares the policies of several major corporations.