Here are a few websites you may find interesting:
Hat Works is the UK's only museum dedicated solely to the hatting industry, hats and headwear!
The only independent voice of the hat trade, now enjoyed in over 50 countries worldwide. The HAT is a quarterly trade magazine
This site is about HATS, HATS and more HATS. Use the Global Hat Directory to source a Hat Factory, Designer or Hat related supplier. Find out everything about hat design, manufacture, retail and care in the Hat Bible. View the Glossary to find the meaning of hat words.