'Gray Googlers' strike gold - USATODAY.com

'Gray Googlers' strike gold - USATODAY.com: "Take Jerrold Foutz. The former Boeing engineer, 75, started a website a few years ago devoted to one of his passions — switching mode power supplies, which help drive, for instance, the inside of video cameras. He put Google ads on his smpstech.com site four years ago. After just one month, the first Google check was for $800. The second check totaled $2,000."