Civil engineer by day, Mike Koza is one of the greatest investors you’ve never heard of. He devotes most of his free time to researching stocks online. His hard work has paid off. Since February 2001 his stock portfolio has grown to over $3 million and he has logged an average annual return greater than 30% according to Marketocracy.com. Click here to see my brief interview with Mike in front of the Bellagio fountains in Las Vegas in May 2010.