The relationship between a complex technological process and an emerging intellectual concept may, at first sight, seem tenuous. However, we may discover a connection if we consider that they are both global issues. Sustainability in relation to environmental issues involves all peoples in all places; it cannot be separated into a concept applicable for individual nation states, or specific bio-regions. Moreover, the concept of sustainability is directly related to communities and their social and economic fabric. We cannot act and do things in isolation: communication is essential. The Internet is a global communication system capable of influencing attitudes in many important areas, not least environmental concerns. This global communication system is currently fostering a special kind of ‘virtual’ community where discussion and transfer of information takes place on a wide variety of issues. Whether such a ‘digital’ community is a suitable focus for the promotion of the concept of environmental sustainability is the theme of this chapter.