Some useful moth-related websites (in no particular order) - all links will open in a new window
UKmoths - An extensive illustrated guide to the moth species found in the United Kingdom
Leicestershire and Rutland Moth Group
Moths
of Dungeness and Surrounding Area
The Butterflies and Moths of Northern Ireland
Moths and Butterflies of Europe and North Africa
James Payne's Garden Wildlife Website
Tony Davison's "Simply Birds & Moths"
Anglian Lepidopterist Supplies
Northampton Specimen Group (fishing)