What Websites do you use for Flight Tracking?

Often I am called upon to check flights and statistics for various reasons since I have found resources beyond calling the CAB. I am interested in what sites you guys/girls have found that are useful.

Here are some I use or found:

http://flightaware.com/
http://www.flightstats.com/
http://www.flightarrivals.com
http://www.airnavlive.com/
http://www.flytecomm.com/cgi-bin/trackflight

I just found this one and it has a lot of information including weather overlays, delays and animated flight tracking:
http://www.helloflight.com/

I also use a few iPhone Apps.

i use flightaware. i like the personalized alerts you can set up. when i work i prefer passur insight, which is a stand-alone program though.

I like flightaware but will have to give helloflight a whirl.

I had Flight Tracker from Airnavsystems.com but it being stand alone also it's a little hard when you're mobile.

Flight Explorer Professional 8.6 for me(when I am on personal desktop). Flightaware for any other computor out of the house or when using wife's laptop.

I also like flightaware.com. I have a pretty basic cellphone, not a blackberry or even close yet I can still track flights on it with flightaware another plus. They even now have a pretty decent aircraft photo section.

As Matt said at work Passur Insight is great, this is an industry live version with a much different look than the normal public web version and it rocks. I can't imagine how we got along without it up here for all those years, a great tool !

Cheers

LGA777