Links
For anything and everything feral cat and T/N/R related - located in Washington D.C.
Headquartered in Utah, the organization which launched the "No More Homeless Pets" movement, and an international leader in advancing the cause of humane treatment for all animals. Best of all, it's full of good news ! No horrifying pictures here - just lots of good information and inspiring stories.
From the homepage click "Outreach" at left, then "Resource Library" for some of the most comprehensive animal rescue and advocacy information on the web - everything from a detailed breakdown on the cost of setting up a spay/neuter van to negotiating sticky feral cat situations with local government.
Be sure to click the "forum archives" at the bottom of that page for transcripts of panel discussions with experts from all over the country on dozens of animal rescue and advocacy subjects.
ASPCA Poison Control