Facebook's Sheryl Sandberg on the small, daily touches that pay off the big ad campaigns

If there's one piece of advice that Facebook COO Sheryl Sandberg would give marketers, it's to "let customers become part of the process." Interviewed by the Huffington Post's Arianna Huffington at an Advertising Week event called "Social Media (For Adults)," Sandberg said the Web is becoming all about personalization, and in the next several years, a Web site that isn't customized to the individual will look as antiquated as a site from 15 years ago looks now.