Here is the collection of general grammar and style resource links.

Bartlett's Familiar Quotations
Passages, phrases and proverbs traced to their sources. A searchable colection of quotations from famous people.

Elements of Style by William Strunk, Jr.
Online edition of this well-known guide to grammar and usage.

Grammar Now
This is a free site dedicated to answering any grammar, composition, research or formatting question you might have.

MLA Style
The official MLA website which contains guidelines on MLA documentation.

Modern Language Association of America
The Modern Language Association of America is a not-for-profit membership organization that promotes the study and teaching of language and literature.

Newsgroup: alt.usage.english
Newsgroup for discussion of English and grammar.

On Line English Grammar
Online grammar resource. Includes instruction and links to related resources.

Open Directory: Style Guides
The Open Directory's collection of links to online grammar resources and style guides.

Owl Handouts: Purdue Online Writing Lab
A comprehensive collection of online handouts covering grammar subjects including: parts of speech, sentence construction, punctuation and spelling.

Reference Desk: Grammar, Usage and Style
Reference Desk's collection of grammar and style links.

Slot, The
The Slot contains The Curmudgeon's Stylebook, an online style guide, plus various articles about grammar and usage.

Sun's Guide to Web Style.
This is a cookbook for helping people create better web pages created by people at Sun Microsystems.

The American Heritage Book of English Usage
Online edition of The American Heritage Book of English Usage

ThinkExist.com
A quotations database and service that contains more than 90000 quotations by over 11000 Authors.

Useit.com
A website about web site design, style and usability.

Wired Style
A computer and web-focused style guide from Wired.

Word Detective, The
An online version of The Word Detective, a newspaper column answering readers' questions about words and language.

Word Police Academy
Online column on Atlantic Unbound by Barbara Wallraff which contains grammar Q&A, grammar tests and other features.

Words-L
Discussion list. The discussions on WORDS-L are wide-ranging. The list began as a resource for discussion the english language and archives can be found on the site.

Writers Write Grammar
The grammar section at Writers Write contains articles, advice, interviews, news, resources and more.

Yahoo Grammar, Usage, and Style
Yahoo's collection of grammar and usage resources and tools.