• Petfinder
  Petfinder is an on-line, searchable database of animals that need homes. It is also a directory of over 10,000 animal shelters and adoption organizations across the USA, Canada and Mexico. Organizations maintain their own home pages and available pet database.
• How to find a lost cat or dog
  Remain calm. Tips on how to search efficiently.
• Tails, a pet magazine
  The Tails Pet Media Group, Inc. publishes magazines in 14 cities across the United States.
• Petamedics
  Petamedics is a pet ambulance service in Newfoundland, NJ. They're available 24/7 and also provide non-urgent animal transportation. Phone: 1-877-360-PETS
• Stop Puppy Mills, from the HSUS
  
• The Association for Pet Loss and Bereavement
  A thorough source of information and assistance for grieving animal lovers.
• Dogfriendly.com
  Traveling with your dog? This is a great resource for finding dog-friendly lodging, activities and even restaurants!
• Alley Cat Allies
  Information on feral cat management

Hardship Resources

• Friends of Animals
  Low cost spay and neuter resource.
• American Animal Hospital Association
  Assistance for owners with financial hardship
• Pet-Friendly Housing
  MyApartmentMap is a housing search web site with pet friendly listings all over the USA.
• Angels 4 Animals
  Services range from financial aid to complete treatment to those pets and pet owners in need.
• Care Credit
  A credit card company for health care, including veterinary care.
• Feline Veterinary Emergency Assistance (FVEAP)
  Currently only assisting owners in California.
• Help-A-Pet
  Efforts focus on serving the elderly, the disabled, and the working poor.
• IMOM
  Dedicated to insure that no companion animal has to be euthanized simply because their caretaker is financially challenged.
• The Pet Fund
  The Pet Fund is a registered 501(c)3 nonprofit association that provides financial assistance to owners of domestic animals who need urgent veterinary care.
• United Animal Nations
  Helping homeless or recently rescued animals suffering from life-threatening conditions that require specific and immediate emergency veterinary care.
• Corgi Aid
• Labrador Lifeline

Pet Tips

• Tips on managing pet allergies
  
• Managing your cat's destructive behavior
  
• What you need to know about declawing your cat
  
• How to deal with shy/semi-feral cats
  
• What to do about a lost pet