Wikipedia
VPNBook
VPNBook is a virtual private network service that uses encrypted connection to mask original IP addresses during online surfing and peer to peer sharing. ZeroPaid listed it as Number 1 on its list of Top Five Free VPN Services, and on the PC Magazine review VPNBook received four out of five stars and it was depicted as having "decent performance".
The service requires an OpenVPN client or means to establish a PPTP connection to be used. There are minimal variety of geographic locations. Available servers include the United States, Canada and Romania. VPNBook is often used to bypass some governmental restrictions.