Kate Maddox of B2BOnline reports today on a new white paper by Slack Barshinger and SearchChannel that projects revenue from B2B vertical search engines will reach $1 billion by 2009.
Entitled “The Emerging Opportunity in Vertical Search,” the white paper analyzes 38 B2B vertical search engines serving two dozen industries, including Business.com, SearchFinance, ThomasNet and Zibb.
According to the report, the number of B2B vertical search engines grew by 26% in the past six months.
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