Green marketing -- a marketing strategy highlighting the environmental attributes of a product -- dates back to the 1970s but began to flourish in the early 1990s. More recently, a number of companies using renewable energy in the manufacture of products have begun to communicate renewable energy use directly on product packaging, relying either on a logo or some combination of text and imagery. This book describes the experience of companies that communicate to consumers that products are "made with renewable energy." Corporate commitments to using renewable energy, and communicating that commitment on product packaging and through other means, could play an important role in educating consumers about the availability and feasibility of using renewable energy as an alternative energy source.