Gizmodo notes that TravelPost has a definitive guide about the wireless internet connections at the major U.S. airports.
The guide shows what type of Wi-Fi is available, the providers, where it is available and the price. It also lists nearby hotels. It has two sections; Wireless Internet in Top 20 US Airports and a Wireless Guide to 141 US Airports. JiWire’s Airport Guide and WiFi Freespot’s Guide are less informative (but less cluttered).







