I want to recommend a hidden gem on Blogger - Stephen Alexander's short and to the point postings on his 'Torpedo the Ark' at http://torpedotheark.blogspot.co.uk
Stephen, with whom I often do not agree, is prepared to think radically about what he sees in the world and I refuse to describe him further. If you are sensitive to discussions of sexual matters and just want to hear the usual platitudes then you do not deserve to read him.
However, a good place to start is this excellent short explanation of what Nietzsche is and what he is not - http://torpedotheark.blogspot.co.uk/2013/10/o-superman.html