One bright spot on the economic horizons around the world seems to be continued consumer spending and e-commerce is clearly a part of this, with sales estimated to be in excess of $9.9 billion in the next three months according to ACNielsen. But there is a dark cloud hovering over this sunny e-commerce landscape called poor web site design. Let's explore some of the reasons why consumers are not reaching for their credit cards after perusing an e-commerce web site.There is a huge knowledge gap a.