New research has surfaced that states e-commerce still brings in less than 5% of retail sales.

Dory Carr-Harris Dory Carr-Harris on December 12, 2011.

Annual US retail spending is roughly $4 trillion according to the US Commerce Department. And while e-commerce is growing very rapidly, it remains less than 5 percent of total retail sales. Historically, most search marketers have focused almost exclusively on e-commerce sales. But a new study finds that the real impact of paid search is offline. Search Engine Land