wonderful search interface for finding cheap flights. I love that you can look for a flight on certain dates from your home airport to anywhere in the world based on where it might be inexpensive to fly during that time. You can then adjust your search using a wonderfully intuitive and interactive graph to find the cheapest surrounding dates to travel. SkyScanner partners with a site called ebookers.com for the actual sale, and note that SkyScanner's prices appeared for me in U.S. dollars while ebookers' showed up in GBP. The company makes separate apps for hotel and car rentals.