His Holiness the 14th Dalai Lama
http://www.dalailama.com/

Foundation for the Preservation of the Mahayana Tradition
http://fpmt.org/

Lama Yeshe Wisdom Archive
http://www.lamayeshe.com/

Liberation Prison Project
http://www.liberationprisonproject.org/

Maitripa College
http://www.maitripa.org/

Dharma Friendship Foundation
http://dharmafriendship.org/