Travel links including airfare

There's so many different travel sites out there that it gets hard to track whats useful.  Sure you should be using travelocity, orbitz, and perhaps priceline if you are up to have no control over your times.  But here's a few more useful sites that you might not have heard of:

• www.kayak.com - This site searches all the big travel sites in one place (Hotwire, Orbitz, Travelocity, Priceline)
• www.yapta.com - Here you can enter in a flight number of a flight you want to track, they'll email you daily on the price movements, if it gets in the range that you like you can then book it.  We highly recommend this site!!