The Protocols of the Elders of Zion, supposedly revealing a conspiracy by Jews to take over the world, was actually forged by the Tsarist Russian secret police around 1900. They wished to make rebellious Russian peasants distrust revolutionary movements containing Jews. The peasants happily massacred Jews, as the Tsar intended, but then went on to massacre the Tsar and his government anyways.
The John Birch Society's more recent conspiracy theory has some structural resemblances to the "Protocols," but has been carefully cleansed of antisemitism.
Caution: if you use this link, you will get on the E-mail list for some Nazi spam.

Adolf Hitler's Mein Kampf
Even the Führer's most devoted admirers drew little inspiration from his written work, and certainly not from this lengthy, wordy, and poorly organized tome. (His genius was as a public speaker.) Nevertheless, after Hitler came to power (1933-45), he earned a comfortable private income from royalties on sales of this book to the politically prudent.
Literary qualities aside, it can be mined for pertinent quotes, if you want to smear (or maybe just tease) your political opponents for sharing an idea with Hitler.

Professor Randall Bytwerk maintains an on-line archive of German Nazi propaganda (1933-1945), including some translations from rabid antisemite Julius Streicher.

Did Six Million Really Die? is one of the best known "Holocaust revisionist" works. Supposedly, little more than 100,000 Jews died in Nazi custody (largely due to the Allied blockade), and "resettlement" meant exactly that -- postwar relocation to Palestine or Madagascar. "Six Million" has some impressive-looking references (eg the International Committee of the Red Cross and the "Jewish historian" Gerald Reitlinger ["The Final Solution: The Attempt to Exterminate the Jews of Europe, 1939-1945" [1968?]). If you look up the references, however, you will find they have been taken out of context. 6M might be worth a look, to compare 6M's technique with that of some comparably bogus historical "revisionists" on the far Left.

The Turner Diaries describes, apparently with approval, a fictional Nazi guerrilla/terrorist takeover of the USA. The FBI claims the "Diaries" inspired Timothy McVeigh's Oklahoma City bombing. "Diaries" author William L. Pierce has kept a lower profile since then.
The book is not necessarily an alluring sales pitch for a Nazi utopia. The successful revolutionaries, for example, uprooted the urban population of Los Angeles and sent them out to wholesome agricultural labor [Chapter 22, "Jul 24" entry], much like the Khmer Rouge in Cambodia (hardly an attractive scenario to the average Orange County right-winger). A coordinated pre-dawn round-up and lynching of political opponents [Chapter 23, "August 1 1993" entry] was only possible because gun-prohibitionists had disarmed the civilian population several years earlier.

http://www.furman.edu/~benson/docs/decl-sc.htm
On 24 Dec 1860, 4 days after passing their Ordinance of Secession, South Carolina released a "Declaration of the Immediate Causes which Induce and Justify the Secession of South Carolina from the Federal Union."
Some revisionist cranks, including, regrettably, L. Neil Smith who had written sensibly on other subjects, claim the US Civil War (1861-1865) "had nothing to do with slavery," but instead was a power grab by greedy Northern business interests.
The folks actually responsible for secession, however, beg to differ with their 21st Century whitewashers. The first half of the SC "declaration" lays out the legal basis for secession, but the second half gives the reason for it: slavery.
Similar declarations were issued by Georgia, Mississippi, and Texas.
The legal exposition to some extent mirrors Abraham Lincoln's Cooper Union speech (27 Feb 1860), widely reprinted both as campaign document and as authoritative statement of Lincoln's policy. The first and largest part of the Cooper Union speech was a carefully researched claim that Congress, the USSC's Dred Scott decision (1857) notwithstanding, had Constitutional authority to exclude slavery from territories not yet admitted as States.

Osama declares a war of genocide, the indiscriminate slaughter of all ages, sexes and conditions:
http://www.emergency.com/bladen98.htm
"The ruling to kill the Americans and their allies -- civilians and military -- is an individual duty for every Muslim who can do it in any country in which it is possible to do it."

Far Left

The Cyber-USSR is "a realm where no kulak goes un-liquidated, no five-year-plan goes un-overfulfilled, and no Great Leader and Teacher goes un-venerated."
Includes the Stalin room of links dedicated to the Great Leader and Teacher.