Steve Jobs has already sent a letter to Apple’s Japanese employees (and all others) to express his support following the earthquake.
“To Our Team in Japan,
We have all been following the unfolding disaster in Japan. Our hearts go out to you and your families, as well as all of your countrymen who have been touched by this tragedy.
If you need time or resources to visit or care for your families, please see HR and we will help you. If you are aware of any supplies that are needed, please also tell HR and we will do what we can to arrange delivery.
Again, our hearts go out to you during this unimaginable crisis.
Please stay safe.
Steve and the entire Executive Team
Apple also enabled their disaster donations page again to make donations directly from within the iTunes Store.
But not only Steve and the Apple staff are there to support the Japanese people where needed. A lot of efforts are raised from within the iOS/Mac development community and in Apple related circles. If you are willing to contribute and maybe even get something in return here’s a list of all community efforts.
Synthetic, the developers of the camera app hipstamatic donate all their Hipstamart profits from March the 18th to March the 31st to the American Red Cross to help the earthquake and tsunami victims. http://hipstamart.com/tsunami_relief
Life in Lofi and iPhone0genic, two iPhoneography blogs have teamed up to offer their readers a chance to donate funds for the Japanese people. All donations also go to the American red cross. http://lifeinlofi.com/2011/03/15/life-in-lofi-and-iphoneogenic-blogs-team-up-for-iphoneography-tsunami-and-earthquake-relief/
Zynga is using its In-App purchasing systems to set up special goods which you can buy in-game and whose profit goes to the Japan earthquake tsunami relief. You can buy these goods in eg. CityVille, FarmVille, …
Capcom has announced to donate 100 million yen in aid of the earthquake victims and all Street Fighter IV sales profits between the 15th and the 22th of March will go to the relief efforts. http://capcom.co.jp/ir/english/news/html/e110315.html
Sega announced that until the 20th of March all revenue made by selling Sonic the Hedgehog games on the iOS platform will also go to the relief. All prices are considerably lower as well. http://itunes.apple.com/us/app/sonic-the-hedgehog/id316025912?mt=8
If you have any more causes which support Japan please mention them in the comments section and I’ll be more than happy to add them to the list.