There's a whole page up since today at medievalists.net about the topic of Medieval Dress - with a nice list of textile- and dress-related online articles. The topic is not restricted to dress or clothing only, but also extends to dress accessories like pins, brooches and jewellery.

There are quite a few articles in that list I'll have to take at least a look at, and it's really nice to see a paper about wall hangings. If you are not of the textile persuasion already and want to have a nice overview of archaeological textiles and the problems of this field, you might want to read the article by Maria Cybulska and Jerzy Maik.