Knowzy.com, the website that’s been tracking which Jack in the Box stores were offering free Wi-Fi, reports that the restaurant chain has pulled the plug. The Wi-Fi offer came with the installation of HDTVs that displayed ads in the dining area, but those are gone too: “In mid-2009, the TVs and the Wi-Fi began disappearing. By the time McDonald’s made their free Wi-Fi announcement in December, Jack had completely dismantled his Wi-Fi network.” [More]