Housesitworld 
Find a house sitter or register to be one.
http://www.housesitworld.com/HouseCarers.com
House and pet sitting listing service.
http://www.housecarers.com/
Happy House Sitters
Matches house sitters with homeowners.
http://happyhousesitters.com.au/
The Caretaker Gazette
A publication which offers house sitting and property caretaker opportunities.
http://www.caretaker.org
Housecheckers USA
Providing house checking services, including surveillance crime deterrent measures, throughout New England.
http://www.housecheckersusa.com/
House Sitters UK
A house sitting directory for the United Kingdom.
http://www.ukhousesitter.com
The Happy Housesitters
Couple willing to house sit world wide. Speaks English, Spanish, Italian, and German.
http://www.geocities.com/kikngar/
Aussie House Sitters
Services Australia and New Zealand, and includes articles, advice, testimonials, and online registration.
http://www.aussiehousesitters.com.au
House Minders
Australia wide service including general information, testimonials, and offers a do-it-yourself or a service-provided program.
http://www.houseminders.com.au
Housem8.com
House sitting couple servicing Europe with references, police checks, and liability insurance.
http://www.housem8.com/
House Sitters America
USA service including FAQs, online search and registration.
http://www.housesittersamerica.com
Mind My House
Global service including advice, forums, FAQs, and search maps.
http://www.mindmyhouse.com
