Biography of P. Curie: Short biography from the foundation that awards the Nobel Prize.
Encarta: Curie, Pierre: Tells about the French physicist best known for the work on radioactivity that he did with his wife, Marie.
Marie and Pierre Curie: Short biographical article tells about the husband-wife team who spent much of their careers studying radioactivity. From PBS.
Marie and Pierre Curie and the Discovery of Polonium and Radium: Detailed biographies of the husband-wife team known for their pioneering research in the field of radiology.