An increasing number of baby boomers are turning to entrepreneurship over traditional retirement, according to a new survey by financing company Guidant Financial. Entrepreneurs over age 50 accounted for 44 percent of respondents to the survey, which found that boomers accounted for 54 percent of all current U.S. business owners. Sixty-four percent of those baby boomers also reported they were looking to make their business grow, while only 6 percent were looking to sell.