that I don't write about, I'll be compiling those here as well. Have ideas? Feel free to share.
Amazon Japan - source for nearly everything, including food and toiletries. Can order in English.
Kenko.com - Large e-drugstore with an English and Japanese version of the site.
Muji - Variety of goods including clothes, furniture and housewares. Stores all over Japan plus online shopping in Japanese.
Tokyu Hands - Store with a large variety of products (also a good source of organic/natural products). Shops in large cities around Japan, and online shopping in Japanese.
CLAIR Japan Living Information - Multilingual living information on all the basics of living in Japan.
Japan Meteorological Agency - Weather, emergency information.
Japan Fast - a great English directory for services throughout Japan.
RatzillaCosme: Japanese Cosmetics Resource - Reviews and product information for specific Japanese products and cosmetics, in English.
Tenki.jp - Updated weather information, plus index info for pollen, laundry drying, among other things. (Japanese)
Wiki-TELL - Directory of English-language services in Japan (not yet comprehensive).
Dictionaries & Translation
Google Translate - An online web and text translator.
Weblio - Online Japanese/English dictionary.
SpaceALC - Another Japanese/English dictionary (but doesn't breakdown kanji).
Food Shopping and Delivery
The Flying Pig - Costco in Japan, online ordering.
Foreign Buyer's Club - Distributor of American products in Japan.
iHerb - Vitamins, supplements and natural health products, online ordering, cheap shipping to Japan. Clicking this link will give you $5 off your first order (affiliate link).
The Meat Guy - Imported meat products (including turkey) and other goods.
Natural House - Organic and natural foods; can order online and also stores around Japan.
Ohtsuya - Bulk nuts, seeds, dried fruit and spices online (Japanese).
Oisix - Vegetable box delivery (Japanese).
Asahi Net - Broadband internet with English customer service.
BB Apply - Sign up for high speed internet in English.
Mail & Delivery
DHL Japan (English)
FedEx Japan (English)
Japan Post - The main postal service in Japan.
UPS Japan (English)
Yamato (Kuroneko) - Shipping company. English site.
Japanese Law Translation - English translations of the main Japanese laws online by the Ministry of Justice. Good resource.
Japan Legal Support Center - Provide legal assistance (in English) and direct you to where you can go for help for legal matters that may arise.
Japan Healthcare Info - Medical info, English/Japanese translations of medical terms, and free services to find English-speaking doctors and other specifics in Japan. Also provide interpreter services for a fee.
The M3 Mediated Multilingual Medical Communication Support System - Online translating system. Useful when going to non-English-speaking doctor.
Medical English Dictionary Online - Useful for looking up conditions and symptoms to get the Japanese translation.
Japan Times - Largest English newspaper in Japan.
Japan Today - Japan news and discussion
Daily Yomiuri - Japan news
Hyperdia - Look up train times in most parts of Japan.
Working in Japan
GaijinPot - Lots of resources and information including job ads and classifieds.
Freelancing in Tokyo - Resources and useful information if you're planning to pursue alternative work in Japan.