I have found at least one breast cancer charity that I can support. It's called Cast Off Chemo and was established by a group of yarn industry professionals to support the research of Dr. David Krag. Dr. Krag is working on using the body's own immune system to fight breast cancer potentially eliminating the need for chemotherapy. This work could also help in the fight against other cancers. Many women, myself included, have already benefited from Dr. Krag's previous work in developing the sentinel node biopsy procedure. Because of that, I still have most of my axillary lymph nodes, and I don't have lymphedema in my arms.
You can purchase crochet and knitting patterns in support of Cast Off Chemo on Ravelry. The easiest way to find all the patterns is to do a pattern search for "Cast Off Chemo," but here's a link to save you the trouble. Two of the patterns, a crocheted wrap and a knitted scarf, were designed by Cari Clement for the charity.
While at the Knit and Crochet Show in July, I purchased 2 skeins of the Wool2Dye4 yarn used in these patterns at the Cast Off Chemo booth. One skein will make the knitted scarf, and 2 skeins will make the crocheted wrap.
Some of this yarn may still be available. There's no shopping cart on the charity's web site but it can be purchased by check. Contact Cari Clement at Cast Off Chemo, 5 Emmons St #2, Montpelier VT 05602. It's $25 for one skein plus the pattern. For two skeins, the price is $45. All proceeds go directly to the project.