General Research and Archives
Behind the Scenes at the Met's Costume Institute
The Costume Society - costume history research group in the UK
The Cutting Class - Draping and Sewing Blog
Humanae - every human skin tone and its Pantone color
Metropolitan Museum of Art online collection - 444,000 and growing collection of the works held by the museum
Morning Dress - guide to men's morning dress 18th to 20th century
Science & Society Picture Library - British resource for images from multiple museums.
Timeline of Women's Fashion 1784 to 1970 in pictures
We Wear Culture - Google fashion archive