Brian Kenney, editor-in-chief of School Library Journal, group editorial director of Library Journals LLC, and a former editorial director of Publishers Weekly, is leaving SLJ and Media Source Inc. to become the director of the White Plains Public Library in White Plains, N.Y. Kenney will take over the position in November. Before joining SLJ, Kenney worked as a librarian and manager of the central library at the Brooklyn Public Library. Media Source, which acquired SLJ and LJ in early 2010, said it has begun looking for a replacement for Kenney.