New school creation is key to success of choice. For the last two decades, the struggle over school choice has focused on freeing up parents to choose. It continues to this day, with growing success in the forms of public and private voucher programs, charter school laws in 40 states and the District of Columbia, and state and federal laws that require school districts to offer options for children in failing schools. This article looks closely at the supply side of choice. It reviews the factors that prevent the emergence of a large number of good new schools of choice and identifies ways those factors can be overcome, both by changes in policy and by private investment. In the long run, the supply side of choice will depend on policy initiatives that create equitable funding and a regulatory neutrality for schools of choice, and on investments made by foundations, nonprofits, and companies in support of new schools.