Stanford University
Soren Kierkegaard, Stanford Encyclopedia of Philosophy
A thorough and complete biography. Includes sections on Kierkegaard's life, rhetoric, ethics, politics, and religion, just to name a few. Also contains a time-line and bibliography of works.
Steven Kreis, PhD
The History Guide: The Age of Ideologies
This online lecture surveys the full range of philosphical thought developed by Kant, Hegel, Comte, and others and their role in modern European intellectual history. Comprehensive and accessible for advanced placement high school students.
Other
Existential Primer: Introduction to Existentialism
An excellent resource when first beginning to research Existentialism. Includes links to other sites on Existentialism.