Michael Lesner,

Michael Lesner, "Fiftysomething"

Old career: Media and advertising executive
New venture: Diagnostic tools to prevent senior citizens from falling

A board member and mentor for Masters of Business Administration candidates at Pepperdine University's Graziadio School of Business, Lesner has also been on the receiving end of expert advice. The school has incorporated his new venture, dubbed "The Balance Project," as part of its curriculum. The best part: Lesner gets marketing, financial, and management guidance from experienced faculty for his business, AcuNetx—which he runs from his yacht—for free.