Alpheus 
Dedicated to esoteric and other alternative interpretations of history, primarily through the prism of Theosophy. Maintained by Govert Schüller.
http://www.alpheus.org/David Green's Critical History Page on Theosophy 
Critical assessments of the lives of Blavatsky, Judge and other founders of Theosophy.
http://members.tripod.com/davidgreen_2/
Eclectic Theosophical History 
History of the theosophical movement and its influence on the outside world. Maintained by Katinka Hesselink.
http://www.katinkahesselink.net/his/
Blavatsky Archives Online 
Articles about and letters by H.P. Blavatsky, including rare and hard-to-find source documents and other source documents on the history of the Theosophical Society and the Mahatmas.
http://www.blavatskyarchives.com/
Rose Cross Work: The Pennsylvania Mystics and Their Mentors 
Focuses on the writings of Johann Georg Gichtel and the Theosophy movement. With information on alchemy and Jacob Boehme. Maintained by Russell Yoder.
http://www.geocities.com/rosecrosswork/
Images of Women in Point Loma Theosophy [Journal of San Diego History ] 
"Starved and Treated Like Convicts", by Evelyn A. Kirkley. More neutral towards Lomaland than the title suggests.
http://www.sandiegohistory.org/journal/97winter/theosophical.htm
Eastern Tradition Research Institute 
Website of the theosophical researchers David Reigle and his wife Nancy. Includes online documents on their in depth search for the Tibetan backgrounds of Blavatsky's theosophy.
http://www.easterntradition.org/