In corporate environmental reporting, greater internet use, company reports available on the world wide web and movements towards a more balanced reporting approach have become the most noticeable trends since the inception of the field in the late 1980’s and early 1990’s. These different trends seem to be converging to push the field towards sustainability reporting using the support of the internet and its associated technologies and services. In this chapter, an internet-based reporting approach is proposed which is intended to move away from early environmental reporting stages towards the advanced one of sustainability reporting, while fully exploiting the media-specific capabilities the internet offers. Such reporting and internet integration has the potential to enhance environmental management system integration and efficiencies.