VPN Gate

VPN Gate is a project from U Tsukuba in Japan that allows you to evade
censorship and filtering by setting up VPN tunnels. It was designed with
the Great Firewall of China in mind.

http://www.vpngate.net/en/[1]

You may need client side software to make this work; tunnelblick[2] is
one such service on the Mac.

[1] http://www.vpngate.net/en/

[2] tunnelblick.html