that's what happened to nathaniel turner. while he and classmate zach weinberg were still undergraduates at the wharton school of business in philadelphia, they and two other partners started a company called invite media. it created a software platform that helps marketers and agencies make the most of their online advertising. just three years later, google bought invite media for $70 million. turner and weinberg now work for google, running the firm they founded as part of google's doubleclick division. nathaniel turner joins us now from the nasdaq market site. gnat, welcome to "nightly business report." >> thank you. >> tom: when did you first realize you were a entrepreneur? >> probably when i was right in junior high. i started taking hobbys that i had and expanding them to new businesses. back when i was 11 or 12 starting a trading card company and a snake-breeding company were huge successes for me at the time. i was able to buy my car and a few other things. >> tom: from trading cards and breeding snakes to online ad