AIDS Action Committee Donations of medications; information and referrals for HIV/AIDS; hepatitis A, B, and C; and sexually transmitted infections; help for people with HIV and their partners, family, and friends. Website: www.aac.org Phone: 617-437-6200 (Boston) 617-661-3040 (Cambridge) 1-877-627-3933 (Toll-free Sexual Health Helpline for young adults) 1-800-235-2331 (Toll-free HIV/AIDS and Hepatitis C Hotline) 617-437-1672 (TTY information line) Addresses: 75 Amory Street, Boston, MA 02119 (Boston Main Office); 617-437-6200 359 Green Street, Cambridge, MA 02139 (Cambridge Office);617-661-3040