From the NYT:

Coincidence or not? This month, 10 of Time Inc.’s magazines are running articles about New Orleans.

The answer, for the most part, is “not.” The assorted articles were the result of the editor in chief John Huey’s unusual decision to take 12 editors on a two-day tour in May of the struggling city. Mr. Huey, who oversees the content of more than 150 magazines, said he could not recall a similar trip in the past, nor could others who were involved.

Mr. Huey said he did not presume that each editor would come back and assign articles about New Orleans, but once they did, the timing was coordinated ahead of next week’s two-year anniversary of Hurricane Katrina’s landfall.

“There were no commercial considerations at all,” Mr. Huey said. “It was just a group of some of the biggest, most influential magazines in the country coming all at once.” ...

Mr. Huey said the multimagazine experiment was not intended to build Web traffic or attract advertisers; rather, it was an attempt to put the journalistic weight of 10 big magazines behind a particular topic. “It felt good to flex those muscles all at the same time,” he said.

Most casual magazine readers would not notice the endeavor; its real impact is evident mostly on the Internet. The print editions steer readers to time.com/katrina, an index of stories from each issue.