Next week, the Wikimedia Foundation is planning to officially launch Wikivoyage -- a “travel wiki,” which, among other information, hopes to offer travel guides and up-to-the-minute information on lodging, transportation, food, and nightlife. As Skift reports, however, this non-commercial effort is drawing intense criticism from commercial rivals. “The already-hammered travel guidebook publishers and startups [are] looking at this new giant free project as a threat to their existence.”