Cthuugle: Search engine for Lovecraft-related material.
H. P. Lovecraft: Information on his life and works; related films; links.
H.P. Lovecraft Quotations: A collection from Lovecraft's fiction and letters. Available in HTML, ASCII, Fortune, and XML format.
Shub-Niggurath Search Engine: A search engine specialized in Howard Philips Lovecraft, Cthulhu Mythos and related subjects.
The H.P. Lovecraft Archive: Contains information on his life, writings, creations, studies, and links.
The Lovecraft Message Board: A moderated fan forum.
Wikipedia: H. P. Lovecraft: Biography, plus surveys of the writer's works and of the secondary literature.