A friend who runs a well-known agency told me “next year we’ll be moving our clients away from print advertising to online marketing.” His reasoning was simple: people are spending more and more time online and reading less. Plus, the cost per “impression” of print versus online doesn’t match up well, particularly when it is [...]

In the current edition of the New Yorker magazine, the best-selling writer Malcom Gladwell challenges some of the conventional wisdom that has grown up quickly around social media services like Facebook and Twitter. Gladwell, who has written books like Blink and What the Dog Saw, has made his name and reputation for his offbeat perceptions. [...]