If you decide you do want spoilers, or you want to read critical analysis (some positive, some negative) after you've finished the books, here you go:

http://www.lizbatty.co.uk/2011/09/11/the-problem-of-julia/
http://thinkprogress.org/alyssa/2011/11/29/376991/women-and-mens-moral-awakenings-in-the-magician-king/
http://hotelsongs.tumblr.com/post/9986559447/lev-grossmans-broken-ladies-in-which-this-dude-is-the
http://www.slate.com/articles/arts/books/2014/08/the_magicians_trilogy_by_lev_grossman_concludes_the_magician_s_land_reviewed.html
http://www.salon.com/2014/08/24/why_does_the_magicians_trilogy_keep_raping_and_killing_off_its_best_characters/
http://weirdaffectations.blogspot.com/2012/05/magician-king-how-to-not-fuck-up.html