After five years of service, Darian recently stepped down as Executive Director of Craigslist Foundation, an organization dedicated to educating, empowering, and connecting emerging nonprofit leaders. While there, he helped launch Nonprofit Boot Camp, the Environmental Nonprofit Network, and the Next Generation Leadership Forum. Heyman also served as a Commissioner for the Environment for the City and County of San Francisco, where he helped pass the largest solar rebate program in the country. Most recently, Heyman launched Code Green Agency, which provides strategy, messaging, and fundraising for the green economy. He is currently editing Nonprofit Management 101: A Complete and Practical Guide for Leaders and Professionals, which will include contributions from more than 50 recognized experts.