The folks at Travelpost assembled availability, pricing, and other details for 135 US airports' Wi-Fi service: They've split it into top 20 airports and then all the rest, including pay-as-you-go rates for hourly and daily use (where available), the monthly rates for different network providers, and details about where service is available. Scroll through the list for two interesting facts. First, the number of free networks, noted in green. Second, the fact that only eight airports out of the top 135 have no Wi-Fi available. That's changed a lot in just a year.
