guerrilla networks

A movement consisting of individuals and community-based groups who are promoting the installation of wireless networks in their neighborhoods. Here's what is happening: People are installing private Wi-Fi access points in their homes and offices, knowing full well that anybody nearby can piggyback onto their connection. Some users see this as creating a public good, while others are tremendously concerned about the security ramifications.

See also : network effect  
NetLingo Classification: Online Jargon