Environmental Law:

ABA's Standing Committee on Environmental Law
APCEL: Asia-Pacific Centre for Environmental Law
ASIL - Guide to Electronic Resources for International Environmental Law
Canadian Environmental Law Association
Center for International Environmental Law
ECOLEX - A global source of information on environmental law
ELAW - Environmental Law Alliance Worldwide
ELI - The Environmental Law Institute
Environmental Law Journal - NYU Law
Environmental Law Journal - Stanford University Law
Environmental Law Journal - University of Virginia Law
Environmental Law Net
Environmental Sustainability Index: ESI - by CIESIN, Columbia University)
EPA - Compliance and Enforcement
EPA - Laws and Regulations
European Environmental Law
Foundation for International Environmental Law and Development Harvard Environmental Law Review
International Environmental Law and Policy - Research materials on international environmental law, including recent developments.
Journal of Environmental Law - by OUP
Journal of Land Use and Environmental Law - by Florida State University Law
LII: Environmental Law
Major Environmental Laws
Schnapf Environmental Law Center
Title 33, Chapter 26 - Water Pollution Prevention and Control
University Law Review Project - Environmental Law Reviews