While doing a search on the net for some specific reseach I came across this website. Mostly dealing with Victorian resources, it contains info and links to Regency resources as well.
For the Regency links and info, click on the "What's New" catagory at the homepage.
Particularly interesting are a series of articles concerning the private lives of people of the era, written by Heather Palmer, who is a lecturer and author in the fields of 18th and 19th century women's lives, clothing and material culture.
I found these insights quite helpful.
~Lou
Please excuse me if this site has been posted here before, but I can't remember seeing it. :)