Stanford University
Stanford Encyclopedia of Philosophy: Friedrich Nietzsche
A thorough, insightful overview of Nietzsche's life and works. A superb introduction.
Internet Encyclopedia of Philosophy
Internet Encyclopedia of Philosophy: Nihilism
Excellent discussion from the Internet Encyclopedia of Philosophy of the history of nihilism in western philosophy and the main ideas associated with it. Although centering around Nietzsche's formulation, author does admirable job of...