Recently online  television critic Nathan Rabin on the AV club has gone back to review every episode of The Simpsons. Although some of the reivew is more the quality of the episode it still provides a good commentary and refers to refrences and in-jokes about certain historical events I wasnt aware of. Heres a review for one of the episodes which I talk about lots in my essay http://www.avclub.com/articles/two-cars-in-every-garage-and-three-eyes-on-every-f,45838/). I need to ask my tutor whats the best way to refrence internet websites.