Lost My Cat - Searchable database with the aim of reuniting lost and found cats with their owners. Users can submit photographs and descriptions of animals. Based in the UK, but also accepts ads from other countries. - http://www.lostmycat.org/
Lost-Doggies - Non-profit effort to help reunite lost dogs with their owners. Database organized by breed, with the option of adding a photograph to the dog's description. Also offers a live chat room. Based in the UK. - http://www.lost-doggies.com
Lost Pet SOS - Non-profit organization serving the entire United States offers free database for all types of lost and found animals. Includes poster templates and advice for pet owners and anyone who finds a stray. - http://www.lostpetsos.org/
Lost and Found Pets of Western North Carolina - Free service where users may post and view lost, found, and sighted pets in Western North Carolina. Also offers contact information for area shelters and veterinarians. - http://lostpetswnc.org/
Lost Dogs UK - Contains the option to add a description of lost and found dogs in the United Kingdom. Also features advice on how to protect your dog and what to do if it is missing. - http://www.lostdogsuk.com/
Missing Pet Center - Free Chicago-based service provides information and photos for lost and found dogs and cats. Accepts local listings only. - http://www.missingpetcenter.com/
Kathy Marsh's Pet HeartLine - Lost pet database allows owners to post lost listings for a one time lifetime membership fee. Those who find lost pets can search the database without charge. - http://www.petheartline.com/
Pet Find USA - List brokers who sell lists of homes within a one-to-two-mile radius in any U.S. city and will deliver pre-addressed post cards with a pet description and photograph, ready to stamp and mail, to the owner. - http://www.petfind-usa.com/
Lost Cats - Brighton - List of cats (with photos where provided) lost or found in the Brighton and Hove area of England. Includes advice on finding a missing cat. - http://www.lostcatsbrighton.org.uk/
Lassie Come Home--NC - Free service helping people of the Piedmont Triad area of North Carolina reunite with their lost pets. Includes lost and found listings searchable by species and city, tips, and contact information for local shelters and newspapers. - http://www.lassiecomehomenc.org/
Animal Planet: Missing Cats - Article on preventing cats from getting lost, steps to take ahead of time to make finding them easier, and what to do if a cat does go missing. - http://animal.discovery.com/guides/cats/essentials/missingintro.html
Hudson Valley Lost and Found Pets - Free service of the Dutchess County SPCA (DCSPCA) of Hyde Park, Dutchess County, New York. Provides database of lost and found pets and offers tips on lost pet prevention and recovery. - http://lostfoundpets.com/
Dog Detective - Database of lost and found dogs. Offers tips for searching, poster template, and individual web pages for lost dogs. Will notify area vets and shelters of a lost dog for a fee. - http://dogdetective.com/
Maryland Lost Pets - Free lost and found listings for Maryland. Also accepts out-of-state submissions. - http://www.mdlostpets.com/
Missing Cat Assistance - E-group offering a network of support, referral, and guidance in locating and recovering lost cats. - http://groups.yahoo.com/group/MissingCatAssistance/
Canada Strays - Dedicated to helping owners of pets lost in Canada reunite with their strays. Searchable database of lost and found pets with photos, descriptions, and contact forms. Includes FAQ, forum, email alerts, and links to related sites. - http://www.canadastrays.com/
Lost Dogs - Steps to take to locate a lost dog, catch it, return it to health, and prevent escapes in the future. Includes downloadable resources. - http://www.basenjicompanions.org/health/lost-dogs/
Cats in the Bag - Provides tips and resources to help owners find their lost and missing pets, particularly indoor-only cats. - http://www.catsinthebag.org/
catfinding - Offers advice and resources for finding a lost cat. Includes contact information for UK vets and local branches of the RSPCA. - http://www.devonrex.pwp.blueyonder.co.uk/
Lostadog.com - Provides descriptions and photos of lost and found dogs. Covers Austin, Dallas, Galveston, Houston, Portland, San Diego, and San Marcos. - http://lostadog.com/
Save The Pet - Company offers individual websites with one or more photos of a lost cat or dog. Owners can then reference the exclusive URL in all their ads. Sample sites and ordering information. - http://www.savethepet.com/
Lost Dog Wichita - Free service for posting descriptions and photos of dogs that have been lost or found in or near Wichita, Kansas. - http://www.lostdogwichita.com/
Pet Line Lost and Found Service - Non-profit group dedicated to reuniting Long Island and NYC pet owners with their lost pets. For a fee, maintains pet information and photo in case of loss and provides ID tag with 24-hour phone number. - http://www.petline.org/
AWOLPET.com - Web-based service that matches the lost animal's rabies tag, license tag, microchip, or tattoo code with its owner by searching a database of registered pets. - http://www.awolpet.com/
Operation K.O.N.A. - Internet based non-profit organization dedicated to reuniting lost pets with their owners in the United States and Canada. Offers advice on what to do if you lose or find a pet. - http://www.operationkona.org/
GetMeHome.ca - Canadian pet registration service that facilitates finding lost pets by using their rabies vaccination tags. Online registration is available. - http://www.getmehome.ca/
The Missing Pets Bureau - Operates a national UK missing pets register and works closely with over 10,000 pet care organizations to aid in pet recovery. - http://www.missingpetsbureau.com/
Rumble - A Lost Shepherd - Family looking for their lost dog in Virginia. Printable flyers, list of sightings, and reward offer. - http://www.globalspan.net/lost.htm
Pet-Detective.com - Listing of lost and found pets, forum, and found pictures. - http://www.pet-detective.com/
Pet FBI - Post or search reports for lost and found pets in Franklin County, Ohio. Includes advice and contact information for shelters, humane societies and rescue groups. - http://www.petfbi.org/
Nashville Pet Finders - Local bulletin board for pets in the Nashville, Tennessee area. Includes tips and FAQs. - http://www.nashvillepetfinders.com/
Missing Pet Partnership - Based in California. Tips, advice, and resources for finding a lost cat or dog. - http://www.lostapet.org/
Missing Animal Response - Email group for persons searching for lost pets. - http://groups.yahoo.com/group/MissingAnimalResponse/
LostandFoundNow - Free listings of lost and found pets and personal belongings, organized by state. - http://lostandfoundnow.com/
Missingpets.com - Worldwide free listings of lost and found pets, searchable by region, date, or type of animal. - http://www.missingpets.com/
Lost and Found Pets - Free posting service in the San Francisco Bay Area, California. Lists lost and found pets, how to search article, and list of area shelters and agencies. - http://www.batnet.com/candiceb/
The Internet Lost and Found - England - List and search for lost and found pets by category. - http://pets.lostandfound.com/index.tpl?cart=103879914511319778&country=England
Bird HotLine - World wide lost and found bird hotline free on the net. Plus bird questions answered, vet talk and bird stories. - http://www.birdhotline.com/
Austin Lost Pets - List of lost and found pets in the Austin, Texas area. Descriptions, forum, and articles. - http://www.austinlostpets.com/
Sherlock Bones - Providing professional help tracing lost or stolen dogs, since 1976. - http://www.sherlockbones.com/
Pets Missing in Action - Created to help lost dogs, cats and other pets find their way home. Includes free pet listing. - http://www.pmia.com/
Missing Pet Network - Group of volunteers sponsored by the USDA Animal Care Office who help people find missing pets. Lost and found listing by state, information on how to post, sample listing, and advice on looking for lost pets. - http://www.missingpet.net/
LostPets.Com - Accepts reports of found pets into searchable database; includes suggestions and resources for locating lost pets. - http://www.pets.lostandfound.com
LostPetNet - Lost and found database, helping reunite pets with their respective owners. Serving the Pacific Northwest. Site also offers tips on finding a lost pet. - http://www.lostpetnet.com/
Lost Paws - Lost and found database helping to reunite owners with their animals. - http://www.lostpaws.com/
Inspice - Free lost and found service for pets and other items. - http://www.inspice.com
Help Lost Pets - Free lost and found service to help reunite pets with their owners. Based in Aberdeen, Scotland. - http://www.helplostpets.com
Flealess Market's Lost Pets International - Free lost and found companion animal ads by country, state (province) and city, including the USDA's Missing Pet Network missing/stolen horses website. - http://www.flealess.org/lostpets/index.html