Travelpony.com is a new hotel booking site along the lines of Orbitz, Expedia, etc. I stumbled upon this site because I was in need of a hotel in New York City for a few days before my upcoming trip to Milan. Having checked all the usual outlets and still unsatisfied with the price, I decided to give travelpony.com a try. For my specific dates the prices were very comparable if not better than those I found elsewhere. Whats even better is that there are currently 2 discounts with travel pony that are ongoing simultaneously which allowed me to get an amazing deal:
First, new members receive 35$ in credit just for signing up using this link here
Second, there is currently a promotion which allows you to get 50$ off a booking of $200 or more; simply enter KATE50 or PROWINNER at checkout.
By combining these two deals, I was able to book the Grand Hyatt New York for 115$ a night all taxes included. For comparison, the same room booked on Hyatt.com is $210
The only caveat that i have found with the site is that the cities are somewhat limited at this point, but they are apparently expanding quickly.