This is an interesting twist. Miller Brewing Company has an employee who maintains the "Brew Blog." He blogs about, what else, beer. While his posts cover a number of beer-related topics, this Wall Street Journal article suggests that one of his favorite pastimes is scooping Anheuser-Bush's PR releases. The blog indicates "BROUGHT TO YOU BY THE MILLER BREWING COMPANY," so transparency appears to be in play.
http://online.wsj.com/article/SB120829767153417401.html?mod=djemMM