Vajrayana Buddhism is also known as Tantric Buddhism, Tantrayana, Secret Mantra, Esoteric Buddhism, and the Diamond Vehicle. The distinctive feature of Vajrayana Buddhism is ritual, which is used as an alternative to the earlier abstract meditations. Its scriptures are known as the Tantras.
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A Tibetan Vajrayana tradition concerned with transforming our everyday experience, engendering a cheerful courage, better perception, sincerity, creativity, and graciousness. Read the Aro teachings as they descended from a lineage of enlightened women, beginning with Yeshe Tsogyel. - Aro Buddhism
http://arobuddhism.org/
Vajrayana Buddhism lineage information. A major extension of Mahayana Buddhism, learn about the major Vajrayana Lamas worldwide. View their photos, history, schedules, and worldwide appearances. Read quotations, or join the mailing list. - Aroter
http://www.aroter.org/
Worldwide Buddhist center organization, of the Karma Kagyu tradition, under the spiritual guidance of "of His Holiness the 17th Karmapa, Trinley Thaye Dorje, and directed by Lama Ole Nydahl". Connect to one of over five hundred centers, or learn about the schools history and founders. - Diamond Way Buddhism
http://www.diamondway-buddhism.org/