University of Pennsylvania Writing House

Center for Communication in Science, Technology, and Management, North Carolina State University

University of Minnesota, Center for the Study of Interdisciplinary Writing

Written Communications in Business at University of Delaware

Common Errors in English, a site created by Paul Brians, a professor of English at Washington State University, to help students "avoid low grades, lost employment opportunities, lost business, and titers of amusement at the way you write or speak."

Online Guide to Grammar by Charles Darling of Capital Community-Technical College

Print Resources:

Walvoord, Barbara E. (1998). Effective grading. San Francisco: Jossey-Bass.

Walvoord, Barbara E. (1986). Helping students write well: A guide for teachers in all disciplines. New York: Modern Language Association.