Dennis Kennedy has published his handouts (PDF) from his ABA Techshow session on Technology Use Policies.
They contain sample policies on internet and email use but even more importantly they contain the warning that each organisation has a different culture and different approaches to technology that must be reflected in their policies.
I am always concerned when someone says "give me a template" without committing to a process which ensures that the template is appropriate and properly communicated to staff.
This handout is a good starting point on how technology is used in your business.
UPDATE : 3 April: Rob Hyndman has collected links to corporate blogging policies.
UPDATE: 4 April: Plaxo’s draft policy