Here are some useful websites with information and updates in English about the ongoing nuclear crisis in Fukushima Prefecture, Japan:
NGO:
Green Action Japan: Fukushima Update
Citizen`s Nuclear Information Center (CNIC): Fukushima Nuclear Earthquake Disaster
Nautilus Institute March 17, 2011 Report (pdf file): After the Deluge
Union of Concerned Scientists (blog): All Things Nuclear
Government:
Nuclear and Industrial Safety Agency
Ministry of Health, Labour and Welfare (MHLW) (food and water data)
Ministry of Agriculture, Forestry and Fisheries
Ministry of Economy, Trade and Inustry (METI)
French National Institute SIROCCO: Coastal Ocean Modelling (Japan Model)
Norwegian Institute for Air Research (NILU): Fukushima potential releases of radioactive materials in the air (computer graphic models)
Industry:
TEPCO (apologies, status reports, rolling blackout schedules, etc.)
Note:
In Japan, the official information has been rather scarce. Many people are relying on data and models from institutes and NGOs abroad to check and confirm the official data. We continue to appreciate your support and encouragement.