Double, double, toil, and (more) trouble for Nielsen. Rounding out a week of very public embarrassments for the audience metrics company comes news its publishing unit – which includes Billboard and The Hollywood Reporter – is essentially in bed with the company’s business arm. A recent spec sheet detailing what’s needed for a new editor of Nielsen’s Adweek reads: “The new Adweek provides the most comprehensive source of news, ideas, information, trends, forecasts and analysis in the advertising industry coupled with Nielsen exclusive data.” It’s a veritable admission Adweek’s editorial is shaped by Nielsen research, argues rival MediaPost: “Aside from raising issues with other trade publications Nielsen must deal with, the disclosure raises questions about Adweek’s editorial autonomy.” Not that a media conglomerate, from News Corp. to NBC Universal, doesn’t use each of its units to support the others, but the reportage in Nielsen’s ad trade now comes with a scooper to collect all those grains of salt.