• American Society for the Prevention of Cruelty to Animals (ASPCA)
• American Humane Association
• Humane Society of the United States
• Humane Society Adoptions

Other Animal Welfare Sites

• Angel Animals Educational Foundation
• Animal Abuse Prevention Agency
• Animal Rights Coalition
• California Hack: Unvarnished Politics
• Defenders of Animals
• Doris Day Animal League
• Humane America Animal Foundation
• IMOM, Inc.
• Molly's Militia
• Morris Animal Foundation
• National Association for Humane and Environmental Education
• National Bird Feeding Society
• Pets 911
• PorcupinePete.com - Pete's Political Sites
• Protectors of Animals Through Love and Support
• ReliableLinks.com - The Best Sites on the Web
• Responsible Dog Owners of the Western States
• Save-A-Life Animal Foundation
• Spay/Neuter Programs
• Spay/USA
• The Progressive Animal Welfare Society
• The Wally Project
• Wildlife Land Trust