Created by co-founders of Orbitz, Travelocity and Expedia, Kayak.com is a search engine that helps consumers find great travel deals from over 120 other travel sites.

CondoCash is offered on revenue generated by Kayak from visitors who are sent to them. Kayak does not sell the travel products displayed on their site, but generates referral fees by sending qualified traffic to travel suppliers, agencies and other advertisers displayed on Kayak.com.