“Stickiness” was one of the original criteria by which Web sites were judged. Marketers wanted visitors to come to their site and stay a while—look around, sign up, make a purchase, tell their friends and, of course, come back. Over the 10-year history of the consumer-oriented Internet, much has changed about the nature of our Web experiences—they’re faster and safer, more educational, more focused and more productive—but stickiness persists as a goal. What has changed is how marketers achieve it and how we’ve grown more sophisticated in our assessment of it. Some Mistakes of the Past In the last five years, stickiness has meant flashiness—literally and figuratively.