Here is something from one of my favorite sources:
http://constitutionalistnc.tripod.com/hitler-leftist/id9.html (the clickable index below is at the end of this paper on why hitler is a socialist.)
Clickable Index:
A modern Leftist
Mises on Nazim and Bolshevism
Insane?
The country gentleman with majolica pots
Party programme
A Galbraithian Leftist
Eugenics
Feminism
Nazis were Greens
A population theorist
More Leftist than racist
Genocide is socialist
Mussolini and the fractious Left
Tom Wolfe on Nazism
Quote from Goebbels
Leftist election posters
Left/Right categorization inadequate?
Denials of Hitler's Leftism: Kangas
Peikoff on Nazi Leftism
Why the enmity between Nazis and the "Reds"?
But he was a nationalist!
There have always been Leftist nationalists
Stalin the nationalist
Non-Marxist objections
Neo-Nazis are different
Why was Hitler so powerful?
Love between the leader and the led
A democrat rather than a revolutionary
Post election manoeuvres
Hitler's socialist deeds
Conservatives and Hitler
Why Hitler's nationalism is confusing
Hitler's magic mix
Nationalism as a novelty
Nazism bourgeois?
Hitler was popular
Stalin as a national socialist
Ho Chi Minh as a national socialist
Is racism Rightist?
Other Fascists were not antisemitic
Distinguishing Hitler and Stalin
The holocaust
Fascism and Mussolini
Nazism in Germany today
Fascism in contemporary Russia
A final summary
References for the paper:
REFERENCES
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Ardrey, R. (1961) African genesis London: Collins
Brown, R.(1986) Social psychology (2nd. Ed.) N.Y.: Free Press. Harper
Bullock, A. (1964) Hitler: A study in tyranny N.Y.: Harper
De Corte, T.L. (1978) "Menace of Undesirables: The Eugenics Movement During the Progressive Era", University of Nevada, Las Vegas.
De Felice, R. (1977) Interpretations of Fascism Cambridge, Mass.: Harvard U.P.
Dietrich, D.J. (1988) National renewal, anti-Semitism, and political continuity: A psychological assessment. Political Psychology 9, 385-411.
Feuchtwanger, E.J. (1995) From Weimar to Hitler: Germany 1918-33. N.Y.: St Martin's Press.
Fischer, C.J. (1978) The occupational background of the S.A.'s rank and file membership during the depression years , 1929 to mid-1934. In: Stachura, P. The shaping of the Nazi state. London: Croom Helm.
Galbraith, J.K. (1969) The affluent society 2nd ed. Boston: Houghton Mifflin
Gregor, A.J. (1979) Italian Fascism and developmental dictatorship Princeton, N.J.: Univ. Press.
Hagan, J. (1966) Modern History and its Themes Croydon, Victoria, Australia: Longmans.
Heiden, K. (1939) One man against Europe Harmondsworth, Mddx.: Penguin
Herzer, I. (1989) The Italian refuge: Rescue of Jews during the holocaust Washington, D.C.: Catholic University of America Press
Lipson, L. (1993) The ethical crises of civilization Newbury Park: Sage.
Locke, R. (2001) Rethinking History: Were the Nazis Really Nationalists? FrontPageMagazine.com. August 28
Madden, P. (1987) The social class origins of Nazi party members as determined by occupations, 1919-1933. Social Science Quarterly 68, 263-280.
O'Sullivan, N. (1983) Fascism. London: Dent.
Pickens, D. (1968) Eugenics and the Progressives. Nashville: Vanderbilt University Press
Ray, J.J. (1984). Half of all racists are Left-wing. Political Psychology, 5, 227-236.
Ray, J.J. & Furnham, A. (1984) Authoritarianism, conservatism and racism. Ethnic & Racial Studies 7, 406-412.
Richmond, M. (1998) Margaret Sanger's eugenics. See here or here.
Ritzler, B.A. (1978) The Nuremberg mind revisited: A quantitative approach. J. Personality Assessment 42, 344-353.
Roberts, S.H. (1938) The house that Hitler built N.Y.: Harper.
Schoeck, H. (1969) Envy: A theory of social behaviour London: Martin Secker & Warburg.
Shirer, W.L. (1964) The rise and fall of the Third Reich London: Pan
Skidelsky, R. (1975) Oswald Mosley London: Macmillan.
Sniderman, P.M., Brody, R.A. & Kuklinski, J.H. (1984) Policy reasoning and political values: The problem of racial equality. American Journal of Political Science 28, 75-94.
Steinberg, J. (1990) All or nothing: The Axis and the holocaust London: Routledge.
Taylor, A.J.P. (1963) The origins of the second world war. Harmondsworth: Penguin.
Toland, J. (1976) Adolf Hitler Garden City, N.Y. : Doubleday.
Unger, A.L. (1965) Party and state in Soviet Russia and Nazi Germany. Political Quarterly 36, 441-459.
Zillmer, E.A., Archer, R.P. & Castino, R. (1989) Rorschach records of Nazi war criminals: A reanalysis using current scoring and interpretation practices. J. Personality Assessment 53, 85-99.
Stalin as a National Socialist
As has been mentioned already, Hitler's strategy for popularity was not lost on Stalin. Quite soon after Hitler invaded Russia, Stalin reopened the Russian Orthodox churches and restored the old ranks and orders of the Russian Imperial army to the Red Army so that it became simply the Russian Army and stressed nationalist themes (e.g. defence of "Mother Russia") in his internal propaganda. As one result of this, to this day Russians refer to the Second World War as "the great patriotic war". Stalin may have started out as an international socialist but he ended up a national socialist. So Hitler was a Rightist only in the sense that Stalin was. If Stalin was Right-wing, however, black might as well be white.
Hitler's Socialist Deeds
When in power Hitler also implemented a quite socialist programme. Like F.D. Roosevelt, he provided employment by a much expanded programme of public works (including roadworks) and his Kraft durch Freude ("power through joy") movement was notable for such benefits as providing workers with subsidized holidays at a standard that only the rich could formerly afford. And while Hitler did not nationalize all industry, there was extensive compulsory reorganization of it and tight party control over it. It might be noted that even in the post-war Communist bloc there was never total nationalization of industry. In fact, in Poland, most agriculture always remained in private hands.
For more details of how socialist the German economy was under the Nazis, see Reisman. Excerpt:
"What Mises identified was that private ownership of the means of production existed in name only under the Nazis and that the actual substance of ownership of the means of production resided in the German government. For it was the German government and not the nominal private owners that exercised all of the substantive powers of ownership: it, not the nominal private owners, decided what was to be produced, in what quantity, by what methods, and to whom it was to be distributed, as well as what prices would be charged and what wages would be paid, and what dividends or other income the nominal private owners would be permitted to receive. The position of the alleged private owners, Mises showed, was reduced essentially to that of government pensioners.
The Left/Right division is at fault
Faced with the challenge to their preconceptions constituted by the material I have so far presented, some people take refuge in the well-known fact that political attitudes are complex and are seldom fully represented by a simple division of politics into Left and Right. They deny that Hitler was Leftist by denying that ANYBODY is simply Leftist.
I don't think this gets anybody very far, however. What I have shown (and will proceed to show at even greater length) is that Hitler fell squarely within that stream of political thought that is usually called Leftist. That is a fact. That is information. And that is something that is not now generally known. And no matter how you rejig your conception of politics generally, that affinity will not go away. It is commonly said that Nazism and Communism were both "authoritarian" or "totalitarian" -- which is undoubtedly true -- but what I show here is that there were far greater affinities than that. Basic doctrines, ideas and preachments of Nazis and Communists were similar as well as their method of government.
But, as it happens, the Left/Right division of politics is not just some silly scheme put out by people who are too simple to think of anything better. There is a long history of attempts to devise better schemes but they all founder on how people in general actually vote and think. Most people DO organize their views in a recognizably Left/Right way. For a brief introduction to the research and thinking on the dimensionality of political attitudes, see here