ION Media Networks has promoted Robert A. Marino to vice president, national sales and added Laura J. Diefenbach as account executive, network sales. Previously, Marino -- who joined the company in
2007 -- was director, national sales. Before ION, he was with AMC/WE TV Networks. Diefenbach held sales posts at UCI-Univision Communications and USA/Sci Fi Networks prior to joining ION.
