"Defines the news"?

I read a reference in Kausfiles to Wonkette's husband taking a job in New York. I check the link and found that he will be working for New York Magazine which describes itself as follows: "covers, analyzes, comments on and defines the news, culture, entertainment, lifestyle, fashion and personalities that drive New York City." I thought it was the New York Times that defines the news, but I checked out the contents anyway, to see if I could find out what defines the news. I still don't know.