The US Air Force has banned all URLs with the word "blog" in it.
Maybe they should add this tidbit of info in their recruiting ads...
I think it's interesting that Blogs have become such a central focus point for an institution like the Air Force - kind of surprising to me. It seems that their justification for blocking access to blogs is that they are not media outlets, and should not be read at work. I thought this related well to our class conversations regarding how the Web has changed our notion of what constitutes knowledge. It seems that the Air Force is a bit stuck in the past and hasn't yet embraced the Wikipedia-esque notion of knowledge.