Esar Levine Collection of Frank Harris: A page of particular interest to serious researchers. Lists the contents of a collection of papers including many original manuscripts by Harris. (None of these texts are online).
Frank Harris (1856-1931): A comprehensive site including biography, bibliography, photos, book reviews, text extracts and resources.
Frank Harris and Aleister Crowley: A brief life of Harris coupled with relevant extracts from Crowley's diaries.
Frank Harris at the Eldritch Press: Texts of works including "The Bomb", and "Montes the Matador", a bibliography and a short biographical note.