Research. Scientists do it. Grad students do it. And so do consumers. In fact, consumers are doing so much online research that marketers are reassessing what their abandoned shopping cart rates really mean. What was once blanketed as a lost sale might now indicate nothing more than a customer checking out prices on the web before buying them at a later date at a brick-and-mortar location.   Conducting product research now to buy later is just one of many indicators revealing...