Opossum Society of the United States is just one of 35,000+ groups listed by members at iGive. Here's a little more detail on them, as provided by members or the organization itself:
The Opossum Society of the United States (OSUS) is a non-profit wildlife rehabilitation and educational organization dedicated to providing care for injured and orphaned Virginia opossums for return to the environment. OSUS members also educate the public about wildlife and coping with urban wildlife problems.
Total raised through iGive: $475.75
The most recent check issued to Opossum Society of the United States by iGive was sent on Aug 31, 2013 for $28.10.