Start-up accelerators have become a prominent feature of the entrepreneurship landscape in recent years. New programs appear nearly every month, and in many ways, accelerator participation has become a rite of passage for budding entrepreneurs. Yet, with the proliferation of programs, the newness of the phenomena, and little to no publicly available data on outcomes for the programs and affiliated start-ups, it is hard for entrepreneurs to determine which programs are most effective and, more importantly, which specific program would be the best fit for their particular start-up’s goals. With this challenge in mind, we set out over the last few years to both foster conversation about the accelerator model, and help entrepreneurs gain visibility into the strengths of individual programs.