For holiday season, Starting today and lasting through January 15th, Google will be offering free WiFi in 47 airports across the United States as well as Boingo Wireless, Advanced Wireless Group, Airport Marketing Income and others to provide free Wi-Fi as a holiday gift now through January 15, 2010. The gift currently includes 47 airports, including Las Vegas, San Jose, Boston, Baltimore, Burbank, Houston, Indianapolis, Seattle, Miami, Ft. Lauderdale, Orlando, St. Louis and Charlotte. Additionally, as a result of this project, Burbank and Seattle airports will begin offering airport-wide free Wi-Fi indefinitely. “We’re very happy to extend our Holiday Wi-Fi gift to the millions of people who will spend time in airports over the next few months,” said Marissa Mayer. Full list of airports.