After many years in the asset management industry, Kirshman launched Impact Metropolis as a social network and video hosting site dedicated to the sustainable and impact investing community. According to Kirshman, as sustainable investing becomes more mainstream, collaboration and sharing of information is being impacted. Kirshman describes how Impact Metropolis is both aggregating resources across the sector and providing a platform where individuals and businesses, both new to impact investing and seasoned professionals, can network, promote their services, and connect with others in the field.