Here are some suggestions I have for various causes...
Animal Abuse -
The Humane Society of the US
http://www.humanesociety.org/ASPCA
https://donate.aspca.org/Cancer -
American Cancer Society
http://www.cancer.org/Kids -
St. Jude Children's Research Hospital
http://www.stjude.org/stjude/v/index.jsp?vgnextoid=f87d4c2a71fca210VgnVCM1000001e0215acRCRDDisaster Relief -
American Red Cross
http://www.redcross.org/The Salvation Army (provides many services including housing, drug rehabilitation, Elderly services, etc)
http://www.salvationarmyusa.orgA smaller organization to consider is Carousel Ranch - It's a place where people with ALL sorts of illnesses and special needs can get equine therapy.
The good thing about this charity is that there are other organizations on Facebook that swear by this place, and would probably help advertise our team if they knew we were donating to them!
http://www.carouselranch.org/Donations