From the official rules for the Digital Photo Magazine B&W contest:
USE OF ENTRY: By submitting an entry, entrant grants the Sponsors and their designees an irrevocable, royalty-free, nonexclusive, worldwide perpetual license to use the entry and his/her name, city and state of residence for credit purposes in Sponsors' online galleries, without further compensation, notification or permission, unless prohibited by law. In addition, each winner grants to the Sponsors and their designees an irrevocable, royalty-free, nonexclusive, worldwide perpetual license to use and distribute the entry (as submitted, or as cropped by the Sponsors), and his/her name, city and state of residence for credit purposes, in any and all media now or hereafter known, including without limitation in Outdoor Photographer, Digital Photo and Digital Photo Pro magazines, for purposes of promotion of this Contest and other Sponsors' contests and/or for purposes of advertising and promoting the Sponsors and, except as otherwise stated herein, without further compensation, notification or permission, unless prohibited by law.