These websites have research articles on all aspects of Regency Britain.
Regency World at candicehern.com
Sharon Latham (includes a good series on Regency marriage)
London Lives contains a huge amount of information about many aspects of life in London in the 18th Century.
This site summarises weather events for several centuries.
An excellent article on postage and mail services.
For specific topics, click on the headings below. These are mainly lists of weblinks.