Palyul Ling International: Tibetan Buddhism and Dzogchen Study 
Palyul Ling promotes the study of Tibetan Buddhism under the tutelage of Dzogchen master, Drubwang Pema Norbu Rinpoche, the Supreme Head of the Nyingma School of Tibetan Buddhism and the Throneholder of the Palyul Lineage.
http://www.palyul.orgBuddhist InfoWeb: Vajrayana/Dzogchen 
Online Buddhist Centers and Information in the Tibetan/Vajrayana/Dzogchen Traditions.
http://www.dharmanet.org/infowebv.html
Buddhist International Alliance (BIA) 
The BIA is a network of Buddhist monastic, education and charity organizations headed by His Eminence Khejok Rinpoche of the Gelugpa tradition within Tibetan Buddhism. Its root monastery is Dhe-Tsang Monastery of eastern Tibet.
http://www.b-i-a.net
Tenovice: Buddhist Center 
A Diamond Way meditation center, directed by Ole Nydahl. Details of the building project, and meditation courses.
http://www.tenovice.cz/
Rigpa 
Rigpa is an international network of meditation centers and groups under the guidance of Sogyal Rinpoche, author of the Tibetan Book of Living and Dying, and H.E. Dzogchen Rinpoche.
http://www.rigpa.org
International Dzogchen Community 
The Dzogchen Community is a broad based association of people brought together by a common interest in the teaching of Dzogchen Ati, who follow it under the guidance of a master possessing practice, each according to his own capacity - the Tantras, the Lungs and the Upadeshas; and further the circumstances necessary for these activities.
http://www.tashi.org/
Indonesia: Kadam Choeling Bandung 
Dharma center in the Lamrim tradition. Includes details of dharma classes and retreats.
http://www.kadamchoeling.or.id