MK

Compulsion had always plagued computer-facilitated social networking—it was the original sin. Rounding up friends or business contacts into a pen in your online profile for possible future use was never a healthy way to understand social relationships. It was just as common to obsess over having 500-plus connections on LinkedIn in 2003 as it is to

When we dress to be photographed, we increasingly dress to be distributed as an image, and thus transformed into a kind of ad.

A social network is an idle, inactive system—a Rolodex of contacts, a notebook of sales targets, a yearbook of possible soul mates. But social media is active—hyperactive, really—spewing material across those networks instead of leaving them alone until needed.

Instead of being fed from above a limited diet of standardized cultural products, everyone — not just a minority of highly educated omnivores — can now craft a varied and customized cultural diet from the digital cornucopia. People create these customized diets by sharing the work of “curation” in differentiated niche taste communities. This

Vigorously participatory curatorial subcultures certainly exist, but in practice, they require too much time and energy to have a broad appeal. People enjoy sharing their discoveries with friends, and they may at least occasionally rate and review items. But most people, most of the time, leave the hard work of curation to others — or to