I volunteer here
. I'm trained in socialization for our former ferals (which is every cat at that shelter, give or take the handful that were rescued when an elderly owner passed away).
The organization is extremely close to my heart because of everything we do for these animals. We don't kill ANY cats (unless they are in the immediate process of dying painfully, i.e just been brought in after being severely hit by a car or if they're in the final painful stages of a disease) no matter how unsocialized, unadoptable they are or their status with long-term diseases. We are a rescue, though, so we don't take surrendered housecats like a traditional SPCA would.
But we do tons of outreach work, tons of education (a class on claws, a class on nutrition, etc) and we support great causes (like anti-breed specific legistlation, for one). We also don't let our adopters declaw their cats or let them outside without a leash and harness.
It's been really, really rewarding. I've been there for over a year and have only had one spontaneous adoption