The first place anyone should start when asking questions about 9/11 is WTC7 building.
No steel structures have ever collapsed due to fire in history.
We accept that the twin towers fell due to steel weakened by fire after planes slammed into them - but WTC7 collapsed on its own for no reason 6 hours later and was never hit by a plane.
If the twin towers were demolished by controlled explosives, they'd have to be done 'top-down' unlike a typical controlled demolition. WTC7 however has all of the makings of a typical controlled demolition. Take a look at the fucking video of it coming down:
http://www.youtube.com/watch?v=dWemhf8fZ2w
Also, you'd think in the first collapses of steel structures in history, there would be a thorough investigation of all the evidence, i.e. tons of fucking steel and concrete. A housefire gets a more thorough investigation than WTC did - nearly all of the evidence was immediately shipped off or sold to other countries.
I think its strange that people will accept parts of the 'conspiracy theory' yet completely write-off other parts as if its ridiculous nonsense only a fool would believe. I think each person needs to ask themselves exactly what they believe happened that day. If any part of what you believe goes against the official story, which has been shoved down our throats since the very second it happened via the media, movies, television shows, etc. , ask yourself what the motivation would be behind obscuring the facts of that ONE tiny portion of the plot. Then take a look at the other pieces of what happened that day. Think about it logically. Whats the bigger conspiracy theory? That 19 extremists managed to slip through a number of lapses in security, fly around the country for over an hour unobstructed by our military, and fly jet planes into planned targets...or that perhaps the government knew it was coming and did everything they possibly could to ensure that it would happen and have a large enough impact to warrant basically any course of action the administration sees fit. It wouldn't be the first time the government had planned to kill its own civilians:
Operation Northwoods.
www.911review.com is the best place to learn about all of facts that have been suppressed and explore critical analysis of the official version of events, as well as some of the flimsier alternate theories (such as stuff presented in Loose Change and , the worst of the bunch, In Plane Site which was actually produced by a right-wing talk radio show to provide misinformation to those interested in the real 9/11 truth movement)