The Leukemia & Lymphoma Society (LLS), founded in 1949, is the world's largest voluntary health organization dedicated to funding blood cancer research, education and patient services. LLS's mission is to cure leukemia, lymphoma, Hodgkin's disease and myeloma, and to improve the quality of life of patients and their families. LLS created the Information Resource Center (IRC) to provide blood cancer patients, their families and health professionals accurate, current disease information and support. IRC information specialists are social workers, nurses and health educators.
LLS has 64 chapters nationwide, as well as 4 chapters in Canada. See Leukemia & Lymphoma Society of Canada. Nationwide volunteer fundraising events and activities include Team in Training (an endurance sports training program where volunteers train to complete an endurance sports event while fundraising to support the fight against blood cancers), Light The Night Walk (a community-based walk that celebrates patients battling cancer, their families and supporters), and School & Youth (K-12 student service and cooperative team program to raise awareness and funds to fight blood cancer). Each chapter also organizes its own fundraising activities.
Financial information, including Form 990s on this organization can be found on Guidestar. The Leukemia & Lymphoma Society is accredited with The Better Business Bureau, meeting all 20 standards for charitable accountability  and is certified by HonCode, Health on the Net Foundation.
Information taken from Wikipedia.org and lls.org