In the early days of ‘Mad Men’ marketing, half of all Marketing spend was famously wasted – the Marketer just didn’t know which half. Man...

Mo Zhou was snapped up by I.B.M. last summer, as a freshly minted Yale M.B.A., to join the technology company's fast-growing ranks of data consultants. They help businesses make sense of an explosion of data - Web traffic and social network comments, as well as software and sensors that monitor shipments, suppliers and customers - to guide decisions, trim costs and lift sales.

A father found himself in the uncomfortable position of having to apologize to a Target employee. Earlier he had stormed into a store nea...

text size: T T Privacy January 12, 2012, 4:30 PM EST If you want to know how much Web companies know about you, talk to Max Schrems. The ...