Adam Winer's Butterflying Information: Large, high-quality photographs of butterflies from North America (mostly California) and Ecuador. Also includes photography tips, San Francisco area butterflying locations, and links.
Butterflies of Japan: Photographs from Japan and Hawaii.
Butterfly-pix: E-mail group for sharing photographs of butterflies and dragonflies.
Chuck's Butterfly Page: Chuck Vaughn's spectacular butterfly photographs.
Marko Laakkonen - Butterflies: Small image gallery of butterflies from around the world.
Neotropical Butterflies: Photographs of butterflies from Mexico, Central America, and Amazonia.
Photographing Butterflies: How to Get Started: Detailed introduction by Jay Cossey.