McCullom has written and produced television news for ABC News' News One, World News Now, and Good Morning America, as well as local news at New York's ABC 7 and Chicago's NBC 5 and Fox. For several years, he was a columnist and featured contributor to The Advocate-and had two cover stories. McCullom's writing has appeared in the Chicago Reader, the Los Angeles Times, The Huffington Post, Out.com, MTV/LOGO's AfterElton, NBC News' theGrio, the Washington Blade, Poz magazine, and other media.