Tracking airfare

[luvdisney00]

I know I've seen something on this board about a site to track airfare. I am going in August, but am still playing with dates based on some things that are not set yet with the kids schedules. I am getting nervous watching Jet Blue sell out flights, why are people booking so early?? I could swear that last year the flights did not even come out until January. Anyway, does anyone know if there is a site that I can watch for prices and flights to help me know when to book as soon as I am set on my dates?
Thanks!

 

[LWQuestie]

Try http://www.bing.com/travel/, formerly known as Farecast.

 

[OKW Lover]

Try Kayak. You can set up alerts that will send you an email showing the current price of your flights.

 

[lvdis]

I like to use yapta.com.