"It doesn't mean you look down on others, just that you are proud to come from where you come from."
Thats how I classify Patriotism, or rather its a sub section of what I consider Patriotism. I think Nationalism is a step too far. And also, like DJFox mentioned, Hitler was a Nationalist, and well anything to do with Nazism is banned outside of educational purposes. So even if I wanted to call myself a Nationalist, at least in Germany, it would probably be a bad idea for me. Unless I want to be put on a Homeland Security (Or our equivalent) watch list, that is. So I usually classify nationalism as the more extreme form of Patriotism. So what you call Nationalism I call Patriotism and what I call Nationalism is what you call basically Fascist. I hope I am not being confusing, because I might have lost even myself in my own explanation.