Google is underwriting free Wi-Fi and a contest at 47 airports: The deal runs from 10 November to 15 January, and combines fee-free Internet access with matching donations made via Google Checkout (up to $250,000) and a photo contest. Several of the airports listed already offer free Wi-Fi (like Las Vegas and Sacramento), but the other deals apply.
Meanwhile, Niagara Falls's new airport has free Wi-Fi; it opens 11 December. However, there's a hitch: there will be almost no regular flights. Go figure.