An excellent resource on the web for all classical studies is Tufts University's Perseus Project.

The Ovid Project, hosted at the University of Vermont, provides access to 17th-century engravings illustrating the Metamorphoses.

The VRoma project is a "virtual community for teaching and learning classics" which offers both resources and the opportunity for interaction with others interested in Roman literature.

The illustration on the left is borrowed from M.C. Escher.