Use redirection services like TinyURL which give a unique link to any site. Just make blocked sites like orkut.com be pointed by such a unique URL like that aof tinyurl.This works b’coz such redirection sites make the adress bar blank while loading.
For orkut.com i’ve made a tiny url link
by clicking which you’ll land in orkut you can make any and many for any site you like by visiting Tinyurl.Com homepage.
See other tips also