Omnicom's Ketchum, a public relations firm, rolled out a global practice that integrates emerging online and wireless media channels to help clients' PR efforts, ClickZ reports. Ketchum Personalized Media focuses on five channels: blogs, RSS, podcasting, search engine optimization and mobile marketing. Ketchum says it's the first global PR agency to organize all five channels under one roof. A spokesman told ClickZ that the group would emphasize the importance of a consistent message across all media.