Here's the best site to date on Death of a Salesman by Arthur Miller. This site offers you a variety of links related to the study or writing about literary texts.
Some links offer an analysis of texts, some offer research tools, some present MLA formatting tips.
You'll have to explore the site on your own to find out exactly what's offered. This site is another professor's general guidelines for presenting essays. I thought I'd include it just to give you an idea of guidelines for a similar class. And since he is not suggesting you do veer too far from my guidelines, I thought another way of saying it might prove useful. Here's a review of Othello that might prove interesting.