“Got a secret? Write it on a homemade postcard and send it to PostSecret, Frank Warren’s ongoing community art project. Since its inception in 2005, the project has collected and displayed upward of 250,000 original pieces of art on its blog. Audiences have fallen for the formula: A 2008 survey by market research firm Youth Trends showed it was the 10th most popular site on the Internet among female college students. Four books of collected confessions have been published to date, most recently, A Lifetime of Secrets. As for Warren, he’s hardly been keeping quiet: He’s appeared on Today, 20/20, CNN, MSNBC, NPR, Fox News and more.”