LAS VEGAS – Kassi Belz, president of MassMedia, a full-service public relations, advertising and marketing firm with offices in Las Vegas and Irvine, California, announced the agency has hired Sean Corbett as vice president of digital strategy and planning. In his new role, Corbett guides an experienced team of marketing professionals to provide a wide variety of digital … [Read more...] about MassMedia Hires Sean Corbett as Vice President of Digital Strategy and Planning