Rainforest Foundation (US)
To preserve rainforests and the indigenous people who live in them. Provides donation information, events listing, and information on internship programs.
Reuters Foundation
Trust.org is a portal providing news, information and analysis for every one interested in humanitarian issues, media, and soon to come legal assistance.
Rhino Foundation
The International Rhino Foundation is dedicated to the survival of the world's rhino species through conservation and research.
Rotary Foundation
The Rotary Foundation. A not-for-profit corporation that supports the efforts of Rotary International to achieve world understanding and peace through international humanitarian, ...