thinkprogress.org keeps a timeline running of events since 9/11. They divide up the timeline into 2 parts, the 9/11 timeline, which documents events from September 11, 2001-September 10, 2006 and a timeline of the last four years in Iraq that has been continually updated since the beginning of the war, March 19, 2003. The website itself is a little radically right but their timelines are accurate and backed up by sources from outside news agencies