MarketingSherpa Releases 2008 Search Marketing Benchmark Guide
WebMarketCentral
SEPTEMBER 14, 2007
Marketers rate SEO second and search engine marketing (PPC) ads third in terms of ROI, behind only house-list email marketing. Online banner ads and print advertising receive the lowest grades for ROI. Thinking of bringing SEM and SEO in-house? Click fraud remains a significant problem, but is very difficult to measure (duh!
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