I'd even go a step further. I'd say that the words left and right become more and more inadequate to describe a political opinion. They may work for the parties in Germany and probably in the US, too. But look at Hungary for instance. There the socialists and the liberals (in easy words the communists and the capitalists - of course that is a bit an oversimplification) had a coalition for a long time and probably they'll have it again. An important part of their politics the last time was privatisation (of hospitals), which is okay for liberals, but not for socialists. That's actually no typical left politics. On the other side there is a party currently in opposition that is called to be right, but concerns for the ordinary people, not so much for the enterprises. They call them right, because they are conservative in terms of caring for traditions. The borders between left and right start to disappear and I think this actually becomes more and more normal in the world. I'd even have problems to describe my political opinions with only the words "left" and "right". Also, our initial topic (Hitlers politics) is an example for that. Quite conservative in terms of traditions and social aspects, but it's economy definately had socialistic aspects, although it would be too simple to only call it socialism...
Well, if you understand politics as a circle, left and right start to disappear as well. The reason is imple: where do right and left begin adn where is their end?