Penton Media, which provides content to 17 industry sectors, named David Kieselstein CEO. Previously, he had been CEO of TNS North America, a division of WPP. Before that, Kieselstein led Dun & Bradstreet’s Small Business Division. Kieselstein spent the majority of his career at with Time Warner. Some of Penton's brands are Industry Week, Registered Rep, Nation's Restaurant News, and Supermarket News.