Welcome to the American Cancer Society in Illinois. The American Cancer Society is a global grassroots force of 1.5 million volunteers dedicated to saving lives, celebrating lives, and leading the fight for a world without cancer. From breakthrough research, to free lodging near treatment, a 24/7/365 live helpline, free rides to treatment, and convening powerful activists to create awareness and impact, the Society is attacking cancer from every angle. For more information go to www.cancer.org. American Cancer Society. Attacking from every angle.