Krupp Kommunications hired John Foster as executive director.

Horizon Media hired Kim Klepfer Schenck as planning director in the brand strategy group. Most recently, she headed up the Cadbury, Cadbury Schweppes, Payless and Schick media accounts at Mediaedge:cia.

Cramer-Krasselt hired Joan Colletta-Sapp as senior vice president/group planning director. Previously, she spent 13 years with Leo Burnett USA as vice president, planning/communications director working on brands including McDonald's, Hallmark, Kellogg, The Discovery Channel and ConAgra.

Discovery Communications named Laura Michalchyshyn president and general manager of Planet Green, responsible for all aspects of the creative and business strategy. Most recently, Michalchyshyn served as executive vice president and general manager of the Sundance Channel.

Colangelo has hired Marko Hurst as director of user experience.

Bob Gruters was named senior vice president, client development group, Univision Communications. Gruters was previously vice president, new business development for the Entertainment Group of MTV Networks.

Joseph Pullen was promoted to director of corporate development at WNET.ORG, up from director of client services.

Megan Langel was promoted to vice president of creative & strategy at Bulldog Drummond.

DOmedia hired Andrew Mansinne as chief executive officer. Mansinne joins DOmedia from Foster's Wine Estates Americas, where he led brand marketing efforts for the Americas Region.

Jonathan Kopp joined Ketchum as global director of Ketchum Digital.