Travel Sites With Alerts / Fare Trackers?

I usually use Orbitz to travel, but this time I specifically need a site that will constantly check fares from your departing airport to a specific destination, all throughout the year, and then e-mail you the fares.

Orbitz will do this somewhat, but you can only pick from a few destinations. The destination I need isn't on the list.

Anyone use a fare tracker? What site do you use?

I use www.farecompare.com and www.yapta.com to track fares. Very different interfaces and not always 100% accurate, but both are useful.

http://www.hotwire.com/

http://www.cheapoair.com/

http://www.kayak.com/

http://www.orbitz.com/

http://www.priceline.com/

http://www.expedia.com/default.asp

http://www.onetravel.com/

http://www.cfares.com/

http://www.cheapair.com/

http://www.sidestep.com/ http://answers.yahoo.com/question/accuse_write?qid=20080717114404AAzLgOm&kid=A4AnO1vaBnc1u1xGy9G1&s=comm&date=2008-08-03+20%3A15%3A02&.crumb=

check this site

http://asianairfares.com