Headline Roundup for March 17th

Outdoor Spending Plummets 15% – via MediaPost

Advertisers, Agencies Split On Overall Ad Optimism, Agree Onad Online – via MediaPost

SEM Spend to Top $26B by 2013; Cannibalize Print Media – via MarketingVOX

Tough Times or Not, the Approach Should Remain the Same – via Adweek