2.1. Timeline from the life of the twins towers : http://www.dipity.com/Julius68/personal/
3. Wordle
3.1. Wordle about 9/11 : http://www.wordle.net/show/wrdl/4884688/11th_September_2001
4. Photo
4.1. Picture number one (with Osama Ben Laden) : http://www.cartoonstock.com/cartoonview.asp?start=&search=main&catref=awan119&MA_Artist=Not+Selected&MA_Category=Not+Selected&ANDkeyword=twins+tower&ORkeyword=&TITLEkeyword=&NEGATIVEkeyword=
4.2. Revisiting 9/11: Unpublished Photos by James Nachtwey : http://lightbox.time.com/2011/09/07/revisiting-911-unpublished-photos-by-james-nachtwey/?iid=lb-gal-viewagn#1
5. Video
5.1. The collapse of the North tower : http://www.youtube.com/watch?v=btftaMMav4I&feature=related
5.2. "World Trade Center" movie : http://www.dailymotion.com/video/x3uo3_world-trade-center-the-movie_shortfilms
5.3. BBC News Report - September 11 Attacks http://www.youtube.com/watch?v=SPh7ECq9sc0
6. Articles
6.1. Timeline of the September 11 Attacks : http://people.howstuffworks.com/september-11th-attacks-timeline.htm
6.2. Remembering 9/11 (Article from Sep 10th 2011) http://www.economist.com/blogs/democracyinamerica/2011/09/looking-back-0
6.3. 9/11 firefighters have higher cancer risk : http://www.msnbc.msn.com/id/44364509/ns/health-cancer/t/firefighters-have-higher-cancer-risk/#.T0PcBfUZZio
6.4. America Marks 10th Anniversary of 9/11 http://abcnews.go.com/US/September_11/sept-11-america-marks-10th-anniversary-911-attacks/story?id=14481689#.T0P9zfUZZio
