A wonderful new on-line resource for visually impaired knitters is: "Working Out Kinks and Fingering Yarn" put together by Ana and Crystal from the BlindKnitters group at google. Every knitter will benefit from the simply stated tutorials for knitting techniques, how to use Ravelry, and other resources Ana and Crystal have put together. Best of all, these two amazing ladies have included articles by many very talented people within the blind stitching community, and are sharing their own teaching talents. They are building a wonderful resource for visually impaired knitters, but truly it will be a great resource for all knitters. Thank you Ana and Crystal!

May I highly recommend the Blind Stitchers Group at google group. They are an amazing group of knitters, crocheters, and a few loomers, too. The members are able to answer any question, and they are friendly and helpful as well.http://groups.google.com/group/blindstitchers/
I know "large print" books are not really large enough for most with low vision, but I did find a wonderful resource for large print books, and they have several for crochet and knitting books, and some cookbooks, too. The group is called "Horizons for the Blind" and they are located in Illinois. They have an on-line site, and they will also send you a catalog. http://www.horizons-blind.org/
A wonderful woman named Grace Campbell has become the co-owner of the loomknittingmagazine TWITCHY FINGERS group at yahoogroups.com. She is an experienced nurse who has helped many blind and low vision people learn to knit, crochet and loom knit. Anyone can join the group. Thank you Grace! You have inspired me to try tape recording and listening to my pattern instructions.