The Internet Encyclopedia of Philosophy's John Locke Page: This page contains a brief biography, and a list of the writings of John Locke. In addition, it details the main points of Locke's philosophies on human nature, government, economics, religion, theology, and education.
The John Locke Bibliography Home Page: This page contains links to a few online texts of John Locke's works. It has an extensive list of links to works about Locke.
Daniel Kian Mc Kiernan's John Locke Page: If you're looking for online editions of the works of John Locke, this is the place to go.
John Locke Timeline: Contains a brief biography & detailed timeline of Locke's life.