Regardless of whether one is a college student or a college professor, everyone can and should strive to improve his or her writing. The following links represent good starting points for doing so.
The homepage for Pitzer’s writing center. The website lists the center’s location, hours, and contact info. There’s also a link to Pitzer’s own composition handbook.
An excellent website from Purdue University that contains many links. Various writing topics are addressed, including process, rhetoric and logic, different kinds of essay genres, style and language, and citation.
A fairly extensive online guide to writing.
A great website from Indiana University on what plagiarism is and how to avoid it (with examples).
This website, created by Ian Johnston of Malaspina University-College in British Columbia, is a thorough treatise on these two forms of essay writing.
This guide from the Univ. of Wisconsin – Madison takes you step-by-step through various styles of annotated bibliographies.