Masterminds are a secret weapon for some successful business owners. There are many different types: from simple local groups, to national and international groups like Vistage and C-12, to custom groups run by business leaders. These groups can run from free to tens of thousands of dollars a year. The goal of a mastermind is to utilize the experience and collective knowledge of the group to solve problems and grow your business. Some meet in person, others via teleconference or webinars, while others are more like business retreats.