| shanksvillememorial.com | Flight 93 Memorial Information Center |
| nytimes.com | On Doomed Flight, Passengers Vowed to Perish Fighting |
| legacy.com | Legacy.com: United Flight 93 |
| flight93crash.com | United Flight 93 Crash Theory - The Real Story Of Flight 93 |
| courageafterthecrash.com | Courage After the Crash |
| airdisaster.com | AirDisaster.com Accident Database: United Airlines Flight 93 |
| loc.gov | Honoring the Passengers and Crew of United Flight 93 Act |
| yahoo.com | Yahoo! News: Flight 93 |
| wpconline.org | Fallingwater |
| unitedheroes.com | United Heroes Of Flight 93 |
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