Antique Pattern Library This site is part of a project to preserve vintage patterns in the public domain. Offers PDF versions of many vintage pattern books and booklets.
Knitting for Victory Excellent essay on U.S. women knitting during World War II with a good bibliography.
Victoria and Albert Museum Searchable database of knitted objects in the V&A's collection, links to knitting patterns from the 1940s, and a great description of British Isles knitting traditions.
The Bohus Museum Information about Bohus Knitting and links to a description and photos of Bohus garments.
Shetland Museum - Textiles The Shetland Museum has photos and descriptions of Shetland lace and Fair Isle knitting, plus a fair amount of history.