In 1996, Hotmail faced a problem every startup knows—great product, zero marketing budget. So they built the ad into the product.

At the bottom of every email sent through their platform, they added one simple line: “P.S. I love you. Get your free email at Hotmail.” Each user became a walking billboard. Within 18 months, Hotmail had 12 million users—at a time when the entire internet had only 70 million people. Microsoft later bought it for $400 million.

The brilliance wasn’t the message—it was the mechanism. Instead of chasing attention, they embedded virality into the experience itself.

Today’s Move: Ask one question about your product or service—how can using it automatically promote it? Build the loop once, and let it sell itself.

Send us a text