homeowners rehabilitate, improve, and maintain their homes. It makes local pickups free (Recycler's World, 2003). More than 120 Philadelphia not-for-profit groups working with people in need and/or people with disabilities have access to BME. It provides employment and training opportunities for adults who are on public assistance in Philadelphia (Mid-Atlantic Consortium of Recycling and Economic Development Officials (MACREDO), 2004). One step beyond materials exchanges and retail stores are resource recovery parks (RR Parks). They have great potential to fully marry community development with major diversion of a regions waste stream. The phenomenon of RR parks is an innovation intended to displace dumps. California is a spawning ground in North America for these parks, because the state has mandated substantial diversion from landfills for every community. But cities like Toronto, suffering from an acute crisis of municipal landfill space, could benefit immensely from them. An RR park is a colocation of reuse, recycling and composting processing, manufacturing and retail businesses in a central facility to which the public can bring all their wastes and recoverable materials. They are sites for much more than C&D resources, but building materials have played a major role in their development. They are places where materials are brought for resale, or for reprocessing and resale. They are also places where businesses can share space, operating equipment like forklifts, repair services, management and technical expertise, accounting services, job training and much more. They would also feature showrooms for various products. They would be an ecologicaleconomic nexus for public-private cooperation and all kinds of networking (Liss & et al, 2002).