What makes a good website

I am required to write a minimum of a 3 page research paper on What Makes a Good Web Site/Page. Include topics as navigation, design, layout, usability, color etc. I need to use a minimum of five different sites and/or sources to complete your paper. It is to be typed in MLA style with both in-text citations and a works cited page. I must use at least 2 articles and 1 book out the 6 resources.