Casa Mai: The Study
Personal history of costuming, image gallery, links, and reviews of costume books.
http://www.casamai.com/study.html

Costume-ConNections
Official site of Costume-Con; convention usually scheduled February, April, or May. Mission statement, index of competition entries and awards, FAQ, news, book recommendations. Resource list for the Washington, DC metro area.
http://www.costume-con.org/

Dalmatian Alley Studios
Image gallery of fantasy and Renaissance costumes, special effects makeup, art, and parody bears, created by husband and wife team Josef and Kit Matulich of Ohio.
http://dalmatianalley.com/