Web 2.0 Travel Tool

I love to travel. And my Mom and I go abroad just about every other year. I spend hours online comparing flight, hotel and tour rates. Moreover, many library customers ask me about comparing airline ticket costs with various sights like travelocity or the airlines themselves, ie us air. So, I decided to explore the travel list of Web 2.0 Awards nominees. I choose the number one winner http://farecast.live.com/. This site is amazing, allowing you to put in one search, like a flight schedule, and jump from hotwire to travelocity to expedia to compare prices. A great time saver for those of us who know their is a cheaper ticket out there somewhere.