Cavy Spirit 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:
Guinea Pig Rescue and Adoption in the San Francisco Bay Area in California
Total raised through iGive: $3,093.32
The most recent check issued to Cavy Spirit by iGive was sent on Jul 31, 2013 for $32.77.