The K2 Intelligence report released June 7 identified the increasing complexity of the media-buying landscape and the corresponding struggle by advertisers to respond to those rapid changes as key factors that have enabled the proliferation of non-transparent business practices in the U.S. market.  ANA and Ebiquity/FirmDecisions have now issued the much anticipated follow-up report, “Media Transparency: Prescriptions, Principles and Processes for Advertisers” which offers a number of recommendations and guidelines. A key recommendation is that advertisers are responsible for more active stewardship of their media investments.