Bladrunner links:

http://www.filmeducation.org/secondary/BladeRunner.html
[From film education site: provides synopsis, short paragraphs on science fiction, location, femme fatale, and good vs. evil followed by questions.]  

http://www.brmovie.com/Analysis/
[Eight pages of analysis covering topics such as: What is Reality? What is Humanity?  More Human Than Human, Postmodernism and Cyberpunk, Religion and Man Playing God, Futuristic Architectural Landscape, etc.]

http://www.lib.berkeley.edu/MRC/bladerunner.html
[This is the fullest citation of books and articles that I have found for this film.  It should provide sufficient materials to choose the sources for your particular interests in relation to Bladerunner.]