3,000 Messages Per Day

"Each day, marketers expose Americans to some 12 billion display ads, 3 million radio ads, and more than 300,000 television commercials. The unsolicited electronic junk mail known as spam now constitutes some 10 percent of all worldwide e-mail. The average U.S. consumer receives roughly 1 million marketing messages a year across all media, or about 3,000 messages per day."

- From Net Worth: Shaping Markets When Customers Make the Rules, by John Hagel III and Marc Singer (Harvard Business School Press)