This is only a 'small' selection of butterfly related Websites.  Please let us know if you have addresses of other interesting Websites that you would like to see listed here.
 

Recommended Lepidoptera Websites and blogs:

• Butterfly Interest Group (NSS) -Featuring butterflies in Singapore, with lots of pictures, articles and facts.
• NSS Butterfly Forum- Buttefly discussion forum on NSS's Nature Forum
• Butterflies of Malaysia  - Great pictures of Malaysian butterflies and tips on butterfly photography.
• Hong Kong Lepidopterists' Society  - Hong Kong Lepidopterists' Society.
• Japanese Butterflies - Lots of pictures.
• Jamides Home Page - Links to other Japanese (insect) sites.
• Lepidoptera and some other life form - A WW Lepidoptera list
  
  Moths
• Moths of Borneo
• Moths great and small
• Moths of Australia
• Sphingidae of South-East Asia
• Sphingidae of the Eastern Palaearctic
• Sphingidae of the Wolld

Butterfly Photography:

• Tip for Butterfly Photography - A great article with lots of tips by Mike Ash on how he photographed the life cycle of the Papilio polydamas.
• Photographing Butterflies  - by Linas Kudzma on PhotoPoint Magazine.
• Get the most from your butterfly hunt - by Jakub Jasinski.
• How to photograph butterfly - A good introduction to butterfly photography by Chin Fah Shin.
• My Butterfly Shooter - Another article on photographing butterfly by Chin Fah Shin.
• NPN Macro forum - The Nature Photographers.net macro forum has a many great pictures of butterflies from around the world.

Other Interesting Butterfly Websites:

• Butterflies Starting Page - Butterfly resources on the Internet
• Butterflies of North America
• Dig's Page - How to create a butterfly garden. Butterfly Life Cycle. Etc. Great site!
• BUZZ the Fly - Comic strip.
• Caterpillar Hostplant Database
• Chuck's Butterfly Page - Great pictures!
• Electronic Resources on Lepidoptera - (Links to a lot of other sites that can give you information on butterflies and moths)
• Natural History Book Service - You can find tons of environmental books from all over the world here.
• Selected Periodicals and Databases
• The Butterfly WebSite - Tips on butterfly gardening, raising butterflies, etc.
• The Online Lepidopterists' Who's Who
• The Pherolist - Sex Pheromones of Lepidoptera and Related Attractants.
• Butterflies: Red Lists - A list of endangered European butterflies.
• Butterfly Species List - A list of butterfly species.
• Caterpillars: especially Australian ones
• Link 2 go's Butterfly Resource list