Possible weaknesses

You have to choose to bypass the Internet censorship or not. I only show you how to do it, I can't take any responsibility. In several censor countries you will go to jail if they catch you, in a lot of companies you will get fired and some schools will ban you.
Of course the censors not only block Internet traffic, they are also looking at it (in countries/companies with a little Internet population) and try to find out who is bypassing their firewall how. An easy way to find out who (and how) is bypassing the firewall is by just looking for some identicators in the logfiles:

* Right after the Internet connection is established the user is connecting to only one server and remains connected to it all the time he's online.

* What a user do right after he gets an "access denied" message from his censor. (open a special website, go to a chatroom, connect to a special server...)

Try to avoid getting caught this way!

Please note that the proxies on my website are not checked/verified. It could be that a censoring government run those proxies just to check who is accessing which blocked information. Maybe some of them are also maintained by hackers that can look on every information that passes their servers (your credit card information, for example). So carefuly choose the server you connect to and even think twice if you use them for the transfer of private data.

More infos: http://www.peacefire.org/circumventor/list-of-possible-weaknesses.html
http://peek-a-booty.org/pbhtml/downloads/ResponseToLopwistcic.htm