The following are corrections and amplifications for the Ad Age Annual issue, Jan. 1, 2007.
Two pie charts showing agency and media market share were accidentally switched during production (P. 26). A corrected version of the charts can be viewed and downloaded from AdAge.com/annual.
A table showing the Top 10 Websites by Ad Revenue (P. 20) should have noted that gross ad revenue from TNS Media Intelligence includes display advertising only.
Bill Cella was a two-time Media Maven winner (P. 36), in 1999 while at McCann Erickson and 2001 as chairman of Magna Global.
Omitted under the WPP family tree (P. 26) was G2, Grey Global Group's international marketing-services umbrella agency reorganized in July 2006 to encompass direct unit Grey Direct & Digital (formerly Grey Direct), G2 Interactive (formerly Grey Interactive Worldwide), and North America units, G2 Branding & Design and G2 Promotion Marketing (formerly the J. Brown agency).