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.
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.
Merriam Webster's Dictionary
Roget's Thesaurus
Scientific and technical thesaurus by NASA.
Rhyme thesaurus at RhymeZone.
Purdue's MLA Guide A guide for in-text citations, footnotes, endnotes, and works cited.
MLA docummentation style at the University Of Wisconsin.
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