Here are some great Regency Websites which I have used for my research to make my world a better and more accurate place, just for you and which are used to create my blog Regency Rambles.

The Infamous Art of Duelling

How did dueling work

Duelling, weapons and rules

Duelling and the Regency

Fencing documents

Historical Fencing Association Terms and weapons

A great article about Angeloƥncing Academy.

Pesky Peerages (or all you wanted to know about how to address a countess)

British Titles of Nobility   Although this site has not been updated it is very helpful

English Titles   by Jo Beverly.  Lots of other interesting stuff about the Regency too

Fashion

Candice Hearn's Regency Collections

General Research

Deb's Historical Research Page