Aid agencies and charities from all over the world have joined the effort in Haiti to control the chaos following the earthquake, to help provide food, water, medicine and accommodation for the victims, and ultimately to help rebuild the country.
Here is a list of some of them - click on the links to find out how you can donate:
Oxfam Australia has 200 staff on-the-ground responding with public health, water, and sanitation services to prevent the spread of disease.
World Vision Australia is organising and distributing aid in Haiti.
The Australian Red Cross is working with other Red Cross and Red Crescent teams on the humanitarian needs of people affected by the quake.
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Médecins Sans Frontières Australia teams were already in Haiti working on medical projects and are now helping to treat the injured. The team are performing caesarian sections and amputations and say their medical facilities are now working around the clock.
ActionAid Australia has been working in Haiti since 1996. It's delivering aid such as food, tents and blankets to those most in need.
Plan Australia is a children's charity, which has already released $US100,000 of emergency funds to help deal with the aftermath.
UNICEF Australia has set up a fund to help children affected by the earthquake, many of whom have been orphaned, wounded or psychologically scarred.
Save The Children Australia has been working in Haiti for 20 years, and is now distributing food and medical aid.
CARE Australia is seeking donations to provide safe water, temporary shelter and emergency supplies to Haitian families hit by the earthquake.
The Australian branch of UN Refugee Agency UNHCR is hoping to raise $150,000 to help the hundreds of thousands of people left homeless by the Haiti quake.
Act for Peace is supporting efforts to provide clean water and sanitation kits to those affected by the quake, and will be helping with long-term needs in the coming months.
Caritas has set up two mobile operating theatres to help those injured in the quake, as well as delivering thousands of blankets, tents and water cans to those left homeless.
An emergency response team from the Adventist Development and Relief Agency is in Port-au-Prince helping to provide water and medical aid to more than 30,000 people.
The website of the government's AusAID program has information about Australian assistance being offered to Haiti and how to volunteer to help.
Facebook also has a Global Relief page with more on the response to the disaster around the world.
It's recommended you donate to reputatable charities and beware of bogus online scams.
USEFUL CONTACTS
For Australians concerned about loved ones in the Haiti earthquake zone, please call 1300 555 135.
The International Committee of the Red Cross (ICRC) has set up a special website to help thousands of people within Haiti and abroad who have lost contact with their loved ones.
