While even the most private green consumption requires an information infrastructure, there are more explicitly collective strategies that can play a major role in community development and in transforming the role of materials in building. Some of these strategies are closely related to consumer boycotts. But here I am mainly concerned with forms of collective consumerism more directly connected to positive forms of green economic development: renewable energy co-ops, car sharing networks, community-shared agriculture groups, co-housing developments, etc. Compared to most forms of individual consumerism, the above forms of collective consumerism tend to be defined much more broadly than as consumer organizations. In fact, many of them are equally production or service organizations, and herein lies an important lesson about regenerative consumerism: it tends to contribute to greater integration of production and consumption. For building materials, one of the most powerful models for community consumerism comes from the Green Communities programme in Ontario in the early 1990s. It combines elements of the ESCO, or energy service company, with green consumer information on materials, with green market and job creation. An ESCO is an organization that provides building retrofit services for free, or rather seemingly for free since the work is paid for by the savings attained in the retrofit. The Green Communities Initiative (GCI) originated in the Ontario environment ministry, but really consisted of a network of community groups in ten Ontario communities. Their concerns were broad, but their core efforts revolved around increasing the energy-