"The Pink Swastika" is a very good historic source of the homosexuals in Nazi Germany and their presence in present day society.
It covers how hitlar found the homosexuals to be useful idiots to his efforts to redo society. How the brownshirts were essentially feeding grounds for the homosexual officers.
It is the darker side of the homosexual movement. It is usually available online, sometimes even legitimatly for free.
Here it is: The Pink Swastika