Eco Index
Science, Environment, Directories, Regional - Eco Index. A database of conservation and related research projects in Mexico and Central America, with project descriptions, goals, achievements, lessons learned and internet links.
http://www.eco-index.org
The National Environmental Directory
Science, Environment, Directories, Regional - National Environmental Directory. Comprehensive and searchable directory of more than 13,000 organizations in the United States concerned with environmental issues and environmental education.
https://www.environmentaldirectory.net/
Online Webportal for Indian Environment Professionals
Science, Environment, Directories, Regional - Comprehensive Indian Environment Search Engine. Network of Indian Environment Professionals' directory of topical links and businesses/organizations related to environment and nature in India.
http://www.envindia.com
MHD-Online
Science, Environment, Directories, Regional - MHD-Online. Database of magnethydrodynamic (MHD) information systems that are used for water treatment.
http://mhdonline.sal.lv/