Laura E. Wendt has been named senior vice president, research and planning at Nickelodeon, Nick at Nite and TV Land. She had been head of research for Nickelodeon International. Darlene Chapman has been named vice president, promotions marketing for Nickelodeon and Nick at Nite. Chapman had been account director, Eastern region, affiliate sales and marketing at sister company MTV Networks. Gina Ross has joined Nickelodeon Movies as vice president of marketing. She had been director of multicultural marketing at Buena Vista Pictures.