You can see some of them..
Click on my sitemeter over there on the right and go through some of the visitors I have to my little blog.
Or click this link here to go to it also: Sitemeter
If I screen shotted all the various visitors I wouldn't have any time to blog. I can give you a small idea of who is visiting me.
US Department of Justice
Oak Ridge National Laboratory
Ohio State University
Michigan State University
US Senate Sergeant at Arms
Several hits from D.C. that correlate to the US House of Representatives
Various US Armed Forces Commands I won't specify which
Several different state Governments and 2 State Police Departments
Don't believe me? Click on the Sitemeter link over there on the right or the one I posted up above and see for yourself.