Animal welfare
Spay/neuter
spayusa.org—Encouraging people to spay/neuter their pets and guide to low-cost programs
doghause.com—More info on benefits of spaying and neutering pets
Dog welfare
unchainyourdog.org—Find out why chaining is inhumane and unhealthy, and read about alternatives
General
aspca.org—The American Society for the Prevention of Cruelty to Animals
nhspca.org—New Hampshire Society for the Prevention of Cruelty to Animals
hsus.org—The Humane Society of the United States
nahee.org—National Association for Humane and Environmental Education; division of HSUS
humaneteen.org—Animal welfare education site for teens; division of HSUS/NAHEE