PBS
Nova: Tech & Engineering: Medieval Stained Glass Science
In this historical interactive, see beautiful examples of stained glass artistry, and learn how the craftsmen of the Middle Ages used chemistry to create them.
Metropolitan Museum of Art
Metropolitan Museum of Art: Louis C. Tiffany
Louis C. Tiffany created fabulous mosaics, stained-glass windows, Favrile glass, lamps, enamels, ceramics, jewelry, metalwork, drawings and paintings. This site provides details on his life and work with wonderful images to explore.