I couldn't stand it when the school blocked this site. I had NerdParadise withdrawals and downloaded a proxy. I don't like how it is a social networking site due to the fact the majority of the people that use this site are very intellectual. Thus I learn more on here than when I sit in class.
The same thing happened to me with 2C&S. The fix was this site. I feel SO much better now!
Oh, and if anyone is remotely interested, I was bored on my x90x.net account and created a simple jCow Social Network with minimal customizations. Join press.f11.us (Put Social Neworking Fullscreen!) if you want. Or not.