http://bit.ly/tm3VFNLogMeIn Hamachi is a hosted VPN service that securely connects devices and networks, extending LAN-like network connectivity to mobile users, distributed teams and business applications. You can easily create secure virtual networks on-demand, across public and private networks.
It allows you to have a minecraft server without portfowarding. All you need is hamachi installed and the server hosts ip address so you can join their game.
