You're probably already familiar with the wonderful PostSecret.

The site asks people to mail in their secrets, on a postcard.

Interestingly, the form they end up taking is similar to print ads - big visual, headline.

But actually they're better than ads, aren't they? They have more wit, more freshness, and more honesty than in 98% of the ads out there.

Why we highly-paid advertising professionals can't come up with work that's as engaging (and as interestingly art-directed) as members of the public can, I wouldn't like to say...