Western Carolina University's Writing Center - http://www.wcu.edu/11545.asp
The Purdue University OWL (Online Writing Lab) - http://owl.english.purdue.edu/
http://owl.english.purdue.edu/owl/section/4/ - Purdue Owl has comprehensive sections which explain in detail the various styles and methods of composition. It is a great starting point for students wanting to supplement their knowledge.
http://owl.english.purdue.edu/owl/section/4/17/ - This area of Purdue Owl will help students to understand not only the process of literary composition but also the terminology used within the field. Also, there is an abundance of information concerning the various theories and criticisms students may encounter throughout their college careers.
http://owl.english.purdue.edu/owl/section/4/18/ - Social Science and Psychology Reports. This link goes into great detail concerning the format and methodology of writing different Psychology reports. The information contained will help guide students through the process of determining an appropriate subject, evaluating data, and assembling a conclusion while also helping the students stay within ethical boundaries established by the American Psychological Association.
This site, Guide to Writing a Basic Essay, guides you through the process of essay writing by following a commonly used format with easy to follow instructions. A sample essay is provided as a model. Link to a variety of writing, research, and grammar resources to enrich your writing experiences.
*An excellent site to use as a step-by-step guide in writing an essay, regardless of its purpose. An option to download instructions is also provided.
Literacy Education Online -
Online writing lab offering quick reference guides to common writing concerns such as writing and documenting a research paper, editing advice for native and non-native speakers of English, business and technical writing suggestions, and academic essay writing tips.