No Kill Newsletter
Take a look at this link :-
No Kill Advocate, #1, 2007, put out by No Kill Solutions run by Nathan Winograd. Winograd is the person who was instrumental in making Tompkins County NY, USA a no-kill county. He is trying to spread this message throughout the US.
Read page 6 and 7 especially of the newsletter and the bit about how much costs are saved by TNR as opposed to killing. I really like the bit about how the International City/Country Management Association said that if money is spent killing 4000 animals in 2001, they'll STILL be killing at least 4000 animals in 2010, but if you invest that money in TNRM, you'll be killing significantly less animals by then and saving money besides.