Discount Stores

• AEON
  JUSCO
  
• Ito Yokado
  
• Diei
  
• Apita - UNY
  
• Keikyu Store
  
• Tokyu Store
  
• SEIYU
  
• Maruetsu
  

Electric Household Appliances

• Yodobashi Camera
  
• BicCamera
  
• Sofmap - Computers
  
• Yamada Denki
  
• Kojima
  
• Nojima
  
• LAOX
  
• Kakaku.com - Japanese CNET!
  

Auto Parts

• Autobacs Seven
  Autobacs (Japanese)
  Super Autobacs (Japanese)
• Yellow Hat (Japanese)
• Auto Tech (Japanese)
• Upgrade (Japanese) - Used Auto Parts

Books, CDs, etc.

• Amazon.co.jp
  

Auction

• Yahoo! Japan Auction