Jack Myers and his Think Tank is not happy with the TNS Media report on 'measured media' (and as we mentioned before, often not representative for the whole market performance) he wrote a lengthy WHY
2007 Media Economy Stronger than TNS Ad Spending Data Reportspiece and points to his 'estimates' for 2007

and for
2008 and 2009Earlier post:TNS Media: US Advertising 2007 vs 2006 by Medium