Stop Sleeping Through Your Dreams
Markets the book, "Stop Sleeping Through Your Dreams: A Guide to Awakening Consciousness During Dream Sleep," by Charles McPhee. Includes excerpts from the book and links to other sites on lucid dreaming.
http://www.dreamgate.com/dream/mcphee/

RAM's Lucidity Site
Techniques for lucid dreams, links to related sites, message board, FAQ, author's personal journal, and lucid dreaming accounts.
http://www.geocities.com/HotSprings/Oasis/8515/

Dream Views
A complete walkthrough of lucid dreaming, controlling dreams, sleep stages, dream recall, and dream signs. Also includes both practical and impractical reasons for experimenting with lucid dreaming, as well as tutorials and an active message forum.
http://www.dreamviews.com/

Course in Consciousness
Online e-book course with sections on lucid dreaming by author Ian Wilson. Also includes dream research, a dream art gallery, and information on out of body experiences.
http://www.geocities.com/lucidmetro/

Spiritwatch
Hosts the "Lucidity Letter" online. Also includes discussion of dreaming in world culture, links to online and classroom courses, as well as essays on a variety of topics related to lucid dreaming--some of which were written by Jayne Gackenbach and her students.
http://www.spiritwatch.ca/

Lars' Lucid Dreaming FAQ
Extensive FAQ covering all the usual aspects of lucid dreaming, along with more specialized content: inducing precognitive dreams, affecting physical matter via dreams, sharing dreams, extending time in dreams, and using herbs to promote dream vividness.
http://www.faqs.org/faqs/dreams-faq/lucid-dreaming-faq/

Bird's Lucid Dreaming Website
Lucid dreaming tips, techniques, book reviews, induction devices, links, message board, and public research. Also markets lucidity cds and an e-book entitled, "The Ultimate Lucid Dreamer's Manual," by Marc Vandekeere.
http://www.consciousdreaming.com/lucid-dreaming/

Lucid Dreaming 4 All
Techniques on lucid dreams, lucid dreaming suggestions, links, lucid dreaming books, message board, and chat room.
http://www.ld4all.com/

Lucid Dream Journal
Entries by the site's author. The site also offers a brief introduction to the topic, and suggests books.
http://personal-freedom.org/empower/lucid/

More Lucid Dreams Project
A workshop and research project aimed at helping one develop one's lucid dreaming skill. Enrollment is limited and those interested must incur a small fee.
http://alquinte.com/en/mld/

Lucid Dreamer's Tool-kit
Markets both dream journal software and software designed to help induce lucid dreams. The book, "Exploring the World of Lucid Dreaming," by Stephen LaBerge is also available for purchase here.
http://www.luciddreams.ukf.net

The Lucid Dream Exchange
A reader supported, quarterly publication that features lucid dreams and articles on lucid dreaming. Readers are encouraged to share their lucid dreaming stories.
http://www.dreaminglucid.com/

The Lucid Crossroads
Covers learning lucid dreaming, techniques, types of lucid dreams, astral projection, and sleep paralysis. Also includes an ongoing study on sharing dreams and unique content on Lucid Dojo--performing martial arts while lucid.
http://www.lucidcrossroads.co.uk/

Sweet Lucid Dreams
Information on lucid dreams including step by step techniques for induction.
http://www.here-be-dreams.com/lucid/index.html

Hopital du Sacre-Coeur Dream Laboratory
A look at lucid dreaming in a laboratory setting including an overview of research and clinical applications.
http://www.jtkresearch.com/DreamLab/e_info_ld.htm

Lucid Dreaming Overview
An overview of benefits, techniques and recommended reading on lucid dreaming by Paul M. Helfrich, Ph.D.
http://www.eliasforum.org/library/lucid_dreaming_overview.html

Lucid Dreaming - Lucid Living
A collection of papers on lucid dreaming and its relation to waking life by Beverly D'Urso, Ph.D.
http://www.durso.org/beverly/Index_of_Papers.html

Lucid dreaming
Wikipedia entry - touching on definitions, techniques, associated phenomenon, a history of the topic and some popular culture references
http://en.wikipedia.org/wiki/Lucid_dreaming

Lucid Dreaming
A paper on the subject, including why you might want to experience them, and how to optimize your chances of their occurrence
http://serendip.brynmawr.edu/bb/neuro/neuro98/202s98-paper1/Holt.html

Awake in Your Sleep
An article of some length on lucid dreaming by Susan Blackmore, PhD.
http://www.susanblackmore.co.uk/Articles/si91ld.html

Lucille
Lucille is free lucid dream training software which displays questions (such as, 'are you dreaming?') on your screen at timed intervals
http://mythwell.com/download.html

Lucid dreaming - Wikibooks
A Wiki devoted to collecting information about lucid dreaming
http://wikibooks.org/wiki/Lucid_dreaming

Lucidipedia
Free lucid dream journal, wiki library articles, weblog, forum, and media downloads.
http://www.lucidipedia.com

Lucid Dreaming
Resources on lucid dreaming, dictionary, products and online community.
http://www.luciddreaming.com