It does go on and on and on...
It's available online at the Internet Archive and from google:
That one's no longer available. Try this:
Videos With Bibi has a post. 1001 Flicks has a review. FilmEducation.org has some background information and some study questions.
The History Place considers the film in relation to Germany's history:
The film's most enduring and dangerous illusion is that Nazi Germany was a super-organized state, that, although evil in nature, was impressive nonetheless.
In reality, Nazi Germany was only well organized to the degree that it was a murderous police state. The actual Reich government was a tangled mess of inefficient agencies and overlapping bureaucracies led by ruthless men who had little, if any, professional administrative abilities.
Kevin Jack Hagopian writes:
Triumph of the Will, like The Birth of a Nation, presents the great conundrum of art: can art be both morally reprehensible, and yet "great"? Riefenstahl was imprisoned by the Allies after the war, and then released, partly because no one could figure out if a film could be an instrument of war. Riefenstahl was adamant; she had been concerned with matters of form, not politics. But she was never to be rehabilitated by the German film industry...
11/26/2007: A Film Canon has a review.
6/27/2008: Roger Ebert has a review:
That "Triumph of the Wall" is a great propaganda film, there is no doubt, and various surveys have named it so. But I doubt that anyone not already a Nazi could be swayed by it.
7/24/2008: Pesky Fly mentions this film in a post dealing with propaganda in this presidential election.
1/7/2010: The Sun's Not Yellow has a post.