Broadcast NewsTech Roundup Digital Revenue Grew in 2014 By RBR.com - April 23, 2015 0 FacebookTwitterWhatsAppLinkedinEmail The latest figures are in from the Internet Advertising Bureau, and it detailed double digit revenue increases for both the fourth quarter and for the entire year. Non-mobile search is the biggest category, commanding 37% of total digital income.Please Login to view this content. (Not a member? Join Today!)