I feel that the following items are covered by computer usage policies, therefore not needed here. There is nothing specific to blogs in any of these and this level of restriction to a service will drive people away. – [I agree. I think the current policy addresses the potential issues of concern with blogs. Perhaps all we really need to do is add one or two examples of blogging to illustrate current policy (in the same way that the current policy use webpages and file sharing software as illustrations)–dp]