Google Inc. (NASDAQ: GOOG) today announced the launch of Google TiSP (BETA)™, a free in-home wireless broadband service that delivers online connectivity via users' plumbing systems. The Toilet Internet Service Provider (TiSP) project is a self-installed, ad-supported online service that will be offered entirely free to any consumer with a WiFi-capable PC and a toilet connected to a local municipal sewage system.
press link: http://www.google.com/tisp/press.html
Also featured is a nice how-to installation guide, for those who don't know shit about tech: http://www.google.com/tisp/install.html