"Silbermann suggests that collecting online is a form of self-expression for people who don’t create. “If you walk around Brooklyn and ask people how they express themselves,” he said in a speech at New York University, “everyone’s a musician or an artist or a filmmaker. But most of us aren’t that interesting. Most of us are just consumers of that. And when we collect things and when we share those collections with people, that’s how we show who we are in the world."

Pinterest, Tumblr and the Trouble With ‘Curation’ - NYTimes.com