http://Wapproved.org http://CallofBoost.org http://UnKownDesigns.org http://WebAdminZone.com Those are all the proxy sites I use... all got the same style...US Based proxy, really fast and reliable. I know people in school who are using it also to unblock facebook/youtube mostly.
They seem pretty good. You can submit them at my website www[dot]unblockmenow[dot]org if you like. Will get you some free traffic