I was poking around seeing who was following my DefenseProcurementNews.com twitter and found that a bunch of airports tweet updates. Dallas Fort Worth (DFW) might be worth following if you fly anywhere in the US. They had this recent classic tweet:
ALERT! 9:59AM CDT: AMERICAN AIR FLT CANCELLATIONS LIKELY TO TOTALLY SCREW ANYBODY HEADING THRU DFW. SORRY, THIS ISN'T EXACTLY NEWS.. 09:59 AM April 10, 2008 from web
Like it said if you fly through DFW you expect AA delays and cancellations.