at school, they proxy through EMBC, who block stuff. If they want to block something themselves, at one time they had an inhouse smoothwall (dansguardian/squid) server, but they now block it by using the remote administration tool, by looking at the window title. eg notdoppler.com, which is unblocked at school, is closed automatically when a window with 'notdoppler' in it opens. I used to have a HTML page in my documents with 2 frames, a 1 pixel blank one, and Google. Now since google blocks frames (it seems to be IE that complies with that request, and I can't use Firefox, as since they upgraded to Windows 7 you can't run EXE's of removable media) so I have to put in the URL in the source directly everytime. I hope no more sites doing this, or since as I said it seems to be IE that complies with that request to block framed Google, I find a way to override this 'safety'