There's good news and bad news for Anheuser-Busch with respect to its newest product, Budweiser American Ale. The good news is that people are talking about the new brew. But the bad news is that the conversation started at Brew Blog, a site run by a former Advertising Age reporter and owned by A-B's biggest rival, Miller Brewing Co.

James Arndorfer, the former Advertising Age reporter who runs Brew Blog, covers the entire beer industry, but the site largely focuses on A-B. According to a Wall Street Journal article, Arndorfer seems to have a near fixation with revealing information about A-B. But Arndorfer says he's merely reporting on the industry leader.

While PR jabs and aggressive ads aren't new to the beer world, Miller's decision to create its own media platform represents something of a sea change in the industry. To be fair, Miller has been out front about its ownership of Brew Blog, but the site's penchant for going after A-B has some officials at the company crying foul.

A-B controls about 50 percent of the U.S. beer market. Miller accounts for a little less than 20 percent of the U.S. market.