“CCR, also sometimes called the Sales Closing Rate or Sales Closing Ratio, is the ratio of orders to site visits. It is the measure of how well your site can make a sale to a shopper, and is considered by many to be the most important metric in your toolbox. Also notice that, logically, it is the result of all of the factors that go into building a site that ‘knows how to sell.’”

“Some inventions ‘take the world by storm’ (archetype: the Sony Walkman). Others seem to fail, lie dormant for decades, but when ‘their time has come’, their use grows quickly, even explosively (archetype: the fax machine). Most achieve slow penetration at first, then their adoption grows more quickly, but later slows down again. A broad social psychological / sociological theory called Diffusion of Innovations (DoI) Theory purports to describe the patterns of adoption, explain the mechanism, and assist in predicting whether and how a new invention will be successful.”