Wikipedia: Interesting Facts about Leo the Constellation  - This entry includes detailed information on Leo the constellation, including the brightest stars in the constellation, a diagram, a history of the myth surrounding the constellation, and a bit on astrological insight.  This is full of fun, interesting facts all about Leo the constellation.

Astronomy: Leo the Constellation  - This is a quick outline of Leo along with constellation position, named stars, fun facts, and messier objects within constellation.

All the Sky - Leo the Constellation  - This site offers fabulous photographic images of constellations done with a camera.  You can zoom in to see larger image of each constellation.  This is a useful resource when trying to understand interesting facts about Leo the constellation from a visual context.

Myths of Constellations - Leo the Constellation  - This interesting research paper is written with annotated sources explaining the significance of each constellation according to the contributions of the ancient Greeks and Romans. This link brings you to the section on Leo, which is filled with a variety of interesting facts.

Overview of Interesting Facts about Leo the Constellation  - Discover where to find Leo and other fun facts about the Lion constallation.