Aristotle, Poetics
http://www.perseus.tufts.edu/hopper/text?doc=aristot.+poet.+1447a&redirect=true
An annotated version of Poetics.
Philosphy - Aristotle
https://www.youtube.com/watch?v=csIW4W_DYX4
A video from The School of Life summarizing Aristotle's work.
Illusion and Epic
http://nebo-lit.com/drama/illusion-and-alienation-drama.html
A site that compares and contrasts the perspectives of Aristotle and twentieth-century playwright and theatrical thinker Bertolt Brecht.