TravelBru New Zealand (http://www.travelbru.com) searches more than just one database of hotels; in fact they search all of the best hotel booking websites each with their own hotel databases.
All you need to do is enter your hotel check-in and check-out dates and the city you would like a hotel in and click on search. The TravelBru website will then search the top hotel booking website databases for you. This means that you do not need to go to each hotel booking site individually to see what deals are on offer. The TravelBru (http://www.travelbru.com) search results will display all the current hotel deals that are available on the hotel booking websites. You can then choose the hotel deal that you would like from those results.