The Medieval Dress and Textile Society 
http://www.medats.org.uk/

The Archaeological Textiles Newsletter
http://www.atnfriends.com/

DATS
http://www.dressandtextilespecialists.org.uk/

The V&A Museum
http://www.vam.ac.uk/collections/textiles/index.html

The Whitworth Art Gallery, University of Manchester
http://www.whitworth.manchester.ac.uk/collection/textiles/

The Braid Society
http://www.braidsociety.com/