 Hillman's commentaries have appeared in the Wall Street Journal, Rocky Mountain News, Denver Post, Colorado Springs Gazette, Pueblo Chieftain, Fort Collins Coloradoan, Greeley Tribune, Loveland Reporter-Herald, Longmont Daily Times-Call, Grand Junction Daily Sentinel, Durango Herald and other publications.He also comments as a guest or host for radio personalities Mike Rosen on Denver's 850 KOA, John Andrews' Backbone America, and Amy Oliver on Greeley's KFKA 1310.Mark married Heidi Horvath on July 16, 2005.