University of Richmond A free, public-access handbook on writing.
University of Victoria An introduction to the process of writing and the study of literature.
Yale Web Style Guide A comprehensive guide to writing style.
Elements of Style by William Strunk, classic 1918 version.
Technical writing issues at the Rensselaer Writing Center.
Purdue's MLA Guide A guide for in-text citations, footnotes, endnotes, and works cited.
MLA docummentation style at the University Of Wisconsin.
Merriam Webster's Dictionary
Dictionary.com — Dictionary and Thesaurus
Roget's Thesaurus
Scientific and technical thesaurus by NASA.
Rhyme thesaurus at RhymeZone.
English as a second language at Dave's ESL Cafe, resources for teachers and students.
Second language resources provided by Purdue University.
English as a second language — online help for beginners.
Book Marketing Update
Freelance Writers at About.com.
Inkspot Writing Resources
JournalismNet
National Writers Union
Teachers & Writers OnLine
Web Del Sol - Literary Arts
Writer's Digest
Writers Free Reference
WritersNet Internet Resource for Writers, Editors, Publishers and Agents
YourDictionary.com