Don't forget about the Writing Center! Make an appointment with the Writing Center in one of their two locations on campus, Breidenbaugh and the Library Annex (library lower level).
The McDaniel College Writing Center provides several handouts on organizing your paper, such as effective paragraphs, topic sentences, transitions, and more!
The Writing Center at the University of North Carolina at Chapel Hill's writing guide gives information on how to move beyond the 5 paragraph essay structure taught in high school.