links to cool Butterfly Sites, some stuff free,
some not.

Tons of beautiful Butterfly and Butterfly related photo's.

Offering unique, handcrafted displays Real Butterflies framed for best visibility of their striking natural colors and shapes. We offer 9 different types of displays, from huge flights to keychains, a HUGE selection of butterfly specimens, and even 4 great butterfly rearing kits!

Discusses monarch migrations with a color map.

North American Butterfly Association

This comprehensive site by the Northern Prairie Wildlife Research Center includes lists of butterflies by state, and lots of photos.