The FAA has updated their air traffic control (ATC) flight delay information page. The big news: you can now search for a particular airport directly from the page. Here’s what things look like for Toledo, Atlanta, and Seattle. This is extremely useful for frequent travelers.
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Paul's Down-Home Page 
You may like the controller side of that site too.
http://www.fly.faa.gov/ois/
It gives more specific info regarding the scope of delay programs.