Skype offers free wifi on selected US airports

Skype
The deal runs from December 21st through December 27th and will allow you to connect to third-party airport Wi-Fi services through Skype Wi-Fi, meaning all you’ll need is a Skype account (and not a different sign-in for every different airport wireless provider).
The promotion covers many of the country’s busiest airports including ATL, DEN, JFK, IAH, SFO. But if you are in LAX, LAS or DFW, you’re out of luck! Check out the complete listing of the covered airports.