Singleton was a pioneer in "clustering"—developing groups of newspapers that centralized a variety of functions, including production, ad sales, business operations and, in some cases, editorial. An example of this was the Alameda Newspaper Group in suburban San Francisco, where in the mid-1990s, a central newsroom in Pleasanton, California, did all the copy editing, layout and page makeup for five daily papers. Upon acquiring the diverse group of papers, Singleton consolidated several news sections (such as sports and features) to one local office away in order to streamline work.