MoviesFoundOnline
moviesfoundonline.com has a really interesting collection of documentaries. I mentioned a couple others in some previous posts. Their Space / Science / Technology section which features movies like
The Secret (2006) and What the Bleep Do We Know!? (2004) and a documentary on the PC industry called Bill Gates v Steve Jobs (2003). The latter is actually pretty informative if you can get past the cheesy personality of the narrator. I mean, he used the phrase "badly wrong". Born Into Brothels is particularly good.