TravelPost was nice enough to write up a definitive guide about the wireless internet connections at the major U.S. airports. If you are anything like me, a laptop is required for self-entertainment while waiting to be groped by security followed by sitting in a stinky, stuffed plane for hours. This guide shows what type of Wi-Fi is available, the providers, where it is available and the prices of said Wi-Fi. It is a nice list if you are planning a trip and want to prepare accordingly.
Airport Wireless Internet Access Guide [TravelPost]