In 2003, PRWeek grimly predicted Sarbanes-Oxley would commence an era of vague financial reporting for marketing companies. Sadly, but not surprisingly, we were right.

Since Sarbanes-Oxley (SOX) was enacted in 2002, the industry's publicly traded holding companies—Omnicom, WPP, Interpublic, Publicis, and Havas—have declined to release revenue figures for their individual firms.

As PRWeek prepares its annual Agency Business Report, we are again reminded of how the industry is sold short by this practice. Independent leaders, like Edelman and Waggener Edstrom, provide ...