Hm, you say that, but Goebbels didn't have any tricks of his own - he learned from the masters - two Americans, Bernays and von Wiegand, who sharpened their skills in the 20's working for the Hearst press and convincing America to smoke.
Edward Bernays - his Wikipedia article is enlightening in and of itself. http://en.m.wikipedia.org/wiki/Edward_Bernays
Propaganda is old as the humanity itself (when was performed mainly through priests), and in Edward Bernays' time it only got formalized.