A lot of this stuff is covered elsewhere and I'm tired of doing your homework for you. Please see this site.
http://www.debunking911.com /index.html
It is updated quite frequently from what i can tell. It's not my only source of some information but it is a good place for a large collection of the information. They update when truthers complain or take issue with certain things. You should check it out if you have not seen it yet.
