If you find one really awesome book or journal that fits your topic perfectly, try looking in the works cited/bibliography/reference list at the end of it. This should contain many more books and journals that are about your topic as well.
When you outline your main ideas, putting them in a specific order is important. Place your strongest points at the beginning and end of your essay, with more mediocre points placed in the middle or near the end of your essay.
An argumentative research paper takes a position on a contentious issue and argues for one point of view. The issue should be debatable with a logical counter argument.
An analytic research paper offers a fresh look at an important issue. The subject may not be controversial, but you must attempt to persuade your audience that your ideas have merit. This is not simply a regurgitation of ideas from your research, but an offering of your own unique ideas based on what you have learned through research.