Value Of North American SEM Industry, 2004-2013 [CHART]
The North American search engine marketing (SEM) industry will reach a value of nearly $23B by the end of 2012, an increase of almost 19% from $19.3B in 2011, according to a September 2012 report from Econsultancy, in association with SEMPO. This valuation includes spending on paid search marketing and search engine optimization (natural search), and on search engine marketing technology. It excludes social media marketing spending (but does include pay-per-click or PPC ads on social networks). Read the rest at MarketingCharts.