Google is the world 's biggest media owner , reporting $ 79.4bn in ad revenue last year , which was three times more than Facebook , the second largest media owner , with $ 29.6bn revenue , according to the latest edition of Zenith 's top 30 Global Media Owners . Among traditional media companies , the leader is Comcast , with $ 12.9bn in revenue . Twitter has boosted its ad revenue by 734 % in four years and is the fastest - growing media owner , according to Forbes .
Google is the world's biggest media giant, reporting $79.4bn in ad revenue last year, which was three times more than Facebook, the second largest media owner, with $29.6bn revenue, according to the latest edition of Zenith's Top 30 Global Media Owners. Among traditional media companies, the leader is Comcast, with $12.9bn in revenue. Twitter has boosted its ad revenue by 734% in four years and is the fastest-growing media owner, according to Zenith.