http://faculty.frostburg.edu/engl/
gartner/Litcomp.htm
Literature and Composition Resources by Dennis Gartner, Department of English, Frostburg State University
http://www.grammarnow.com/
Free site dedicated to answering specific grammar, composition, or formatting questions.
http://www.ccc.commnet.edu/grammar/
The Guide to Grammar and Writing, sponsored by the Capital Community College Foundation.
http://www2.actden.com/writ_den/
tips/essay/index.htm
Parts of an essay, how to write an essay, and kinds of essays.
http://web.uvic.ca/wguide/
Pages/StartHere.html
The University of Victoria Writer's Guide.