Please list only price comparison sites sorted by category. A price comparison site should have

• A search engine to allow you to search for products
• Price lists of matched product(s) in sorted order from multiple merchants

• Google Shopping NZ
• PriceMe
• PriceSpy
• Shopbot
• StaticIce
• GeekZone Shopping

• NZ Campervan
• Trvago NZ
• SkyScanner - Budget & Full Service flight search good for Europe.
• Kayak
• Hotels Combined NZ
• JetCost
• Free Hotel Compare
• Adioso - Budget & Full Service flight search focused on Australia
• ITA Software Google's flight search allowing for more complex routing.
• Kayak

• Booko - Books and DVDs
• Luzme - E-books, includes price history.

• Vehicle Rental Prices
  • Discovery
  • VroomVroomVroom
  • Best Car Rental
  • DriveNow

• Fuel Prices
  • PriceWatch

• Power Switch - Consumer Power Company Comparing

• Bing Shoping
• CamelCamelCamel - Price history on Amazon (excludes ebooks)
• Bizrate
• Frugal Rouleur - Mainly searching for Bike parts some shoes and sport clothing as well
• Google Product Search
• My Simon
• Pricify.com - Get Alerted when Prices drop on any site

• Panda Check - Price Comparison on Chinese Buying Sites (eg. Aliexpress, Everbuying, DealExtreme)

• Geizhals Preisvergleich

• Price comparison services on Wikipedia