Search engines are an excellent source of high quality web traffic. They don’t send visitors who ’stumble upon’ your website or accidently clicked on an ad banner.

Emotional engagement is the key to viral marketing success. People share their everyday experiences by communicating them to others in and outside of their network.

A billboard located at the street corner is watching you. A camera is embedded in the billboard and a computer analyzes the people who pass by it. It tells the advertiser how many people walked in front of the screen, turned to face the ad and how long...