Not really an exhibit, but theInternational Folk Art Marketin Santa Fe is in just a couple weeks, will showcase a huge amount of folk art including textile arts. I'd love to make it to this!
Articles and websites:
Google has created an amazing resource for fashion and textiles:We Wear Culture. It is full of informative articles on everything from designers to the meaning of fashion to history of fashion. I particularly like the section calledMaking of.