Looking for primary sources to use in your teaching of 9/11? Check out over 3,000 hours of news coverage from September 11, 2001 to September 17, 2011 at the Understanding 9/11 TV News Collection. It contains broadcasts from major U.S. news outlets as well as international news channels (e.g., BBC, CCTV3, CBC, AZT, NHK).
There are also some Vialogues that were created back in 2011 for the 10 Year Commemoration:
I hope that for next year we can lead/participate in activities that result in a more powerful collection of 9/11 vialogues for educators.