" The web lets anyone say anything, and there's no experts to check it. "
Are you mad? Do you think the mass media is a better source of unbiased news?
Please I urge you to check this fact-sheet of mass-media ownership.
This info-graphic explains how the majority of media is connected by 3 major organizations.
Without talking about 9/11 at all, I have to disagree that the internet makes it HARDER to be informed and check facts. There is a reason it is called the information age.