The George Santayana quote “Those who cannot learn from history are doomed to repeat it” applies to email marketers as much as to anyone else. That’s one reason Chad White, research director at Smith-Harmon, a division of Responsys, put together the “Retail Email Guide to the Holiday Season 2010,” a white paper that reviews last year’s email marketing campaigns to help marketers with their efforts this year. Based on last year’s trends, White has made five predictions regarding email....