• Kayak.com
• Hotels.com
• Quickbook.com
• Expedia.com
• Orbitz.com
• Travelcity.comm
• Priceline.com
• Hotwire.com
• Travelaxe.com (compares rates on other sites)
• Travelworm.com (for casino rsorts)
• The next three are discounts around Disney world:
  Disneydollarless.com
• Mousesavers.com
• Wdwig.com
• Unusualvillarentals.com (3,500 pages on villa rentals)
• Hiddentrails.com (affordable dude ranches etc)
• Lastminutetravel.com (unsold hotel rooms - discounted)
• 11thhourvacations.com (unsold hotel rooms - discounted)
• Caribbean-on-line.com (reviews of 1,000s of Caribbean resorts)