Environmental Valuation Reference Inventory (EVRI) Is a searchable storehouse of empirical studies on the economic value of environmental benefits and human health effects. It has been developed as a tool to help policy analysts use the benefits transfer approach. The InfoBase is accessible only to registered subscribers who have a valid user ID and password. But can view the list of records without subscription
	Environmental Valuation Database (ENVALUE) Developed by the New South Wales Environmental Protection Agency is a systematic collection of environmental valuation studies presented in an on-line database
	The Digital Libary of the Commons (DLC)  The Digital Library of the Commons (DLC) is a new gateway to the international literature on common property resources. This site contains an archive of author - submitted full articles, papers, dissertations as well as comprehensive bibliography of the commons.
	International Institute for Sustainable Development (IISD) IISD's Research Library and database contain information on sustainable development and related topics that are of interest to researchers, policy analysts and business strategist worldwide. Both the library's extensive print collection and its links to hundred of Web sites can be sourced through this web site.
	National Library for the Environment Features a collection of full-text reports from the Congressional Research Service dealing with environmental issues.
	Harvard Environmental Dissertations Database This database indexes dissertations on environmental topics from Harvard University, 1990 to the present.
	EPEQ-Environment and Economy Information Base This web site was developed by Prof. Ross McKitrick and Mr. Imran Khan in the Department of University of Guelph in Guelph, Ontario, Canada on 1998. A database showing indicators of aggregate economic activity matched with data on a wide variety of environmental quality indicators
	Beneficial Use Values Database Developed by Department of Agricultural and Resource Economics, University of California, Davis. This is the distribution site for the Beneficial Use Values Database (BUVD), an informational database of economic values for beneficial uses of water collected from a variety of sources. This database will ultimately provide a useful guide for decision-makers, policy analysts, and others interested in valuation of water resources
	U.S. EPA National Center for Environmental Economics Working Paper Series Working paper available from 2001 onwards.
	Ecosystem Valuation This website developed and written by Dennis M. King and Marisa Mazzotta. It is designed for non-economist who needs answer to questions about the benefits of ecosystem conservation, preservation and restoration. It provides non-technical explanation of ecosystem valuation concepts, methods and applications.
	National Environmental Data Index (NEDI) The National Environmental Data Index (NEDI) provides direct access to environmental data and information descriptions. The overall goal of the NEDI is to facilitate the use of the widest possible range of environmental data and information to support our ability to protect human health, safety, and welfare; to maintain and restore ecological integrity and to sustain economic stability and growth.
	The Biodiversity Economics Library  Contains information on bio-diversity economics, financing and business and policy.