New York--VNU Communications Inc. has split its VNU Business Publications USA unit into three divisions. The new structure, announced by Michael Marchesano, who recently took over as president-CEO of VNU Business Media, is made up of the Marketing/Media Retail division, including the Adweek Magazine Group; the Travel, Performance, Real Estate/Design and Food Service division and the Entertainment division. Marchesano and Howard Lander, COO of VNU Business Media, also created a new office of the president to develop the company's long-term strategies. Mark Dacey, formerly president of Adweek has been promoted to president of the Marketing/Media and Retail division; Rich O'Conner has been named president of the Travel, Performance, Real Estate/Design and Food Service group. Marchesano will serve as acting president of the Entertainment group.