Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Common Ground is a nonprofit social services organization with the goal of creating high-quality permanent and transitional housing for the homeless. Their philosophy holds that supportive housing costs substantially less than homeless shelters and many times less than jail cells or hospital rooms, and that people with psychiatric and other problems can better manage them once they are permanently housed and provided with services. Since its foundation in 1990 by Rosanne Haggerty, the organization has created more than 2,000 units of housing for the homeless. "This is about creating a small town, rather than just a building," according to Haggerty. "It's about a real mixed society, working with many different people."