British comedian and atheist Pat Condell has an excellent series of YouTube rants on religion. Here are his two most recent.
Here he talks about Islamic efforts to curtail religious free speech, particularly giving warning to America--our Constitution, with its Establishment Clause and First Amendment, is one of the few beacons of light for religious freedom--about this impending threat to our founding principles.
And here he waxes eloquent on organized religion, particularly the tyranny of the clergy.
Even if one disagrees with him (which I do not), I think there is great value in exercising skepticism and critical thinking--in all aspects of life; we should adopt views which we have reason to adopt and not because we are told we must.