SEM the Most Effective Acquisition Channel for 85% of Retailers [Survey]

A study by Shop.org and Forrester Research shows 85 percent of retailers surveyed said search marketing (including paid and SEO) was the most effective customer acquisition tactic. And, the research showed paid search was the channel most heavily invested in.

Source:http://searchenginewatch.com/article/2357163/SEM-the-Most-Effective-Acquisition-Channel-for-85-of-Retailers-Survey