The Red Cross is the key aid organisation collecting donations for relief efforts following Japan's earthquake and tsunami.
The Japanese branch of the organisation is overseeing around 80 teams on the ground, but donations are being taken at branches around the world.
You can make online donations through the British Red Cross or you can download donation forms to post. Cheques should be made payable to British Red Cross and sent to British Red Cross, Japan Tsunami Appeal, Ref: ON2011, Freepost NAT21787, Paisley PA1 1BR.
The the American and the Philippine Red Cross are taking donations by SMS, which the Red Cross piloted after the earthquake in Haiti last year. For donations from the US, text REDCROSS to 90999 to make a $10 donation. In the Philippines text REDAMOUNT to 2899, or DONATEAMOUNT4-digit M-PINREDCROSS to 2882 for Globe subscribers, and REDON to 4483 for Smart subscribers.
Alternatively, donations can be made to the Japanese Red Cross through Google's Crisis Response site, which also offers resources and information about the disaster.
The Salvation Army is also using SMS to take donations. Text the words JAPAN or QUAKE to 80888 to make a $10 donation – make sure you respond YES when you receive a "thank you" message. You can also take the more tradition donor route, donating online, by phone, calling 1-800-SAL-ARMY.
Save the Children UK is taking online donations and credit and debit card donations over the phone. Call +44 (0)20 7012 6400. Lines are open Monday to Friday from 9am to 5pm.
Meanwhile, Plan has launched an appeal for funds, along with World Vision in the UK and the US, and Islamic Relief.
Christian Aid and Oxfam have not set up separate appeals for Japan, but you can donate to their general emergency funds.
The UK-based disaster relief charity ShelterBox, which delivers emergency shelters and supplies, is also taking general donations.
Mercy Corps is also taking online donations or over the phone by calling 0845 2450686 (lines are open between 9am-5pm, Monday to Friday). The organisation is working with its partner Peace Winds, a local Japanese NGO.
JEN, another local Japanese relief agency, is collecting international credit card donations online. Those based in Japan can also donate to JEN by post.
Habitat for Humanity Japan is looking for volunteers who are based in Japan to help with clean-up. It expects its response to last for up to two years and might invite foreign volunteers at a later date.
Meanwhile, Habitat for Humanity International is also taking credit card donations through its website.
InterAction, an alliance of US-based international NGOs, has published a list of its members that are collecting money for the relief efforts. You can pledge money directly to the 22 organisations mentioned, which include Relief International, World Vision and Habitat for Humanity.
PayPal has set up an online store to take donations for Save the Children, GlobalGiving, HandsOn Network and the American Red Cross. It will pay all contributing costs.
The online coupon site Groupon has set up a page to allow visitors to donate $5, $10 or $25 to support efforts of the International Medical Corps in Japan. According to the site, the coupon for donations won't expire until 16 June.
The Catholic Relief Services is also collecting money. It is working with Caritas International. Donations can be made online or by phoning 1-800-736-3467 between 8am and 11pm ET.
In the US, the FBI has warned the public to be vigilant when making donations. It warns against responding to any unsolicited emails calling for money, check the legitimacy of the organisations you're donating to and avoid cash donations.
The FBI and the National Center for Disaster Fraud, created to investigate fraud in the wake of Hurricane Katrina, has a "tip line" for the public to report any suspected fraud. The number is (866) 720-5721 and lines are manned 24 hours a day, seven days a week. Alternatively, email disaster@leo.gov.