NOTE: These resources have been collected over a long time. While I do my best to maintain their accuracy, please advise me if you find a dead link. 

American Memory from the Library of Congress

Bath, Museum of Costume - UK

Beadwork, Medieval

Beverly Birks Couture Collection - 19th & 20th C. Extant clothing

Bjarne Drew's Costume Site, Denmark (Regency, Elizabethan, Lacework & more)

Byzantine Dress, the Basics of

BYZANTINE & MEDIEVAL LINKS INDEX
This page attempts to track ALL Byzantine material on the Internet

Celluloid Wrappers - Costume in the Movies (Official site for studying and obtaining costumes used in film)

Celtic Dress of the 16th C.

City Gallery - 20th C. Photography (History of, some good old photos of extant clothing)

Chinese Costume (Antique)

Colonies, Material Culture of the American Colonies

Corsets, The Long Island Staylace Assoc.

Costume Design Chicago

Costume Gallery, The

Costume Goddess

Costume Society of America

Costume Page (Links & References)

Costumer's Manifesto, The

Curiosity Shop, The
(has great section on Cartridge Pleating w/instructions)

DHMuseum
(collections of extant clothing, photographs, articles, etc.)

Drachenstein Treasures
(hand made coronets, crowns, Elizabethan necklaces of state, etc.)

Eachna's 5th Cent. Celtic Re-enactment Page

Elizabethan Costuming Page
(Wonderful resources!)

English Hood Instructions

Empire of Chivalry & Steel
(Middle Ages Resource)

Fabrics- Patchworks, reproduction period fabrics

FirstView
(Famous Designers on-line) - pictures of all but most recent collections are free

Fashion Avenue

Fashion Institute of Technology - modern clothing design school
(on-line Showcase)

Fashion Institute of Design - SF
(on-line Gallery, including archives)

Greater Bay Area Costumers Guild

Garb Glossary
(SCA based dictionary of Garb terminology)

German "Renn" Landsknecht links, references

Gloves, how to make
(patterns, links to resources)

Godey's Lady's Book

Guild of St. George

Gulden & Brown
(Antique Wedding Gowns - nice library of pics)

Greenland Ten Gore Dress
(House Neverwinter Period Costuming site)

Hairstyles - Beauty Shop Archives

Hidden County Costumes
(supplier of angel wings)

Historical Costume and Fashion Links
(jj's link page)

Historical Footwear of the Middle Ages
(includes patterns, resource material)

History of Costume, Braun & Scheider

International Costumer's Guild

Internet History Sourcebook: Main Page - great resource!

Ireland, Smaller Social History of
(sub page of Tir Na Og)

Jas. Townsend and Son, Inc. Home Page

Jessamyn's Regency Costume Companion

L'Age d'Or - French and English Baroque

Lemke, Carl - Period Repro Jewelry - garter collars, signet rings etc

London, Museum of

Lithuanian Folk costume-CULTURAL HERITAGE

Military Metalwork (historical reproductions)

Margo Anderson, One Tough Costumer - specializing in Elizabethan
Margo's site contains a wealth of period costuming information

Marquis de Kipar, Baroque
(French & English)

Medieval & Renaissance, The Well Dressed Wench
(lengthy links page)

Medieval Women Artists

Medieval Resources, the Internet connection for

Milanese Tailors' Handbook

Milieux: the Costume Site

Military Metalwork
(historical headwear reproductions)

Millinery: Davne Dial's

Medieval Almoner's Purse, c. 1340

Opus Anglicanum - Medieval Renaissance Embroidery

Oriental Costumes

Pattern Lending Library (authentic Vintage Patterns)

Pike & Musket Society

Poulet Gauche, Le
(Med. French Country Garb, info)

Reconstructing History

Regency Fashion Page

Regia Anglorum, Anglo Saxon, Viking, Norman & British Living History 950-1066 AD

Renaissance, the Elizabethan World

Renaissance Faire Homepage

Renaissance Tailor, the - 16th & 17th C. clothing

Retro (Art Deco Mag)

Sarah Juniper 17th C. shoes

Scottish Clothing ca.1600-1800 C.E.

Scotland's Monarchy
(subpage of history of English Monarchy)

Sense & Sensibility
(Titanic, Regency & similar Romantic ladies' clothes)

Shoes - Design for Life
(pictures of vintage shoes)

16th Century Stays & how to make them

SilverPin Studio

Tudors & Stuarts - lineage of the English throne