Models Against Eating Disorders
This link takes you to the page where you can find different ways to donate to the national eating disorders association : http://www.nationaleatingdisorders.org/get-involved/ways-to-give.php
This link will allow you to donate to The Alliance For Eating disorder Awareness : http://www.eatingdisorderinfo.org/Home/DonateNow/tabid/1004/Default.aspx
Both places also have online stores.