Practical Hydroponics Magazine  
   An Australian bi-monthly hydroponics magazine with a handful of free articles for online reference.
   http://www.hydroponics.com.au

Gardenweb Hydroponics Forum  
   Forum for hydroponic discussions catering to home hobbyists.
   http://forums.gardenweb.com/forums/hydro/

Hydroponics Online  
   Hydroponics tutorials, forum, free garden designs and descriptions plus photos and grower bulletin boards.
   http://www.hydroponicsonline.com/

Virginia Cooperative Extension - Home Hydroponics  
   An introduction describing plant requirements, types of systems and media plus some nutrient basics and descriptions of common deficiencies.
   http://www.ext.vt.edu/pubs/envirohort/426-084/426-084.html

S.H.A.R.P. The Super Hydroponic Awesome Radish Project  
   Introductory and advanced home hydroponic concepts including lesson plans for teachers. Includes links and an FAQ.
   http://library.thinkquest.org/C0110342/index.html

Grow Your Own Vegetables Without Soil  
   An overview of hydroponics with background information, explanations of different hydroponic techniques, and instructions on how to make a hydroponic system work. Includes information on nutrient management.
   http://edis.ifas.ufl.edu/scripts/htmlgen.exe?DOCUMENT_VH030

Hydroponics At Home  
   An overview of hydroponic techniques prepared by the Michigan State Extension Service.
   http://www.msue.msu.edu/msue/imp/mod03/03900048.html

Hydro For Hunger  
   Members of the hydroponic supply industry use their resources to contribute to agencies fighting world hunger. Participants, programs, products, links, press releases, and ways to contribute.
   http://www.hydroforhunger.org

Hydroponic Gardening @ Suite101.com  
   A community site which offers articles, links and discussions pertaining to hydroponics.
   http://www.suite101.com/welcome.cfm/hydroponic_gardening

Ray Schneider's Weedless Garden  
   Pictures and descriptions of indoor and outdoor systems devised by a hobbyist.
   http://users.adelphia.net/~schneirj/hydro.htm

Hydroponics as a Hobby  
   A circular from the Extension at University of Illinois at Urbana-Champaign, offers a basic history and guide to hobby hydroponics.
   http://www.ag.uiuc.edu/~vista/html_pubs/hydro/hydrotoc.html

Paul's Hydroponic and NFT Growing Page  
   Practical information and experiences from a hobby grower. Including introductions on the various growing methods available.
   http://get4.me.uk

Hydroponic Gardening - Maximum Yield  
   Web version of a how-to hydroponic gardening and indoor gardening bi-monthly magazine. Offers articles, special features, contests, contact information, availability and archives.
   http://www.maximumyield.com/

Simply Hydroponics - Hydroponic University  
   A series of basic tutorials, FAQ's, free system plans, and contact information for detailed questions.
   http://www.simplyhydro.com

Jack's hydroponic info pages  
   Jack's Hydroponic Info Pages provide extensive info on gardening indoors with Hydroponics for the newbie and for the expert gardener.
   http://www.hydroponics.com/info

Abigal Gordons Home Hydroponics  
   Basic guide to operating a Home Hydroponic Garden.
   http://www.geocities.com/green_cache/hydroponics.html

Wikiponics  
   A Wiki-based location for sharing information on hydroponics and aeroponics. Shared system designs, project logs, equipment and supplies reviews, and related topics
   http://wiki.seacow.net/bin/view/Wikiponics/WebHome

What Is Hydroponics  
   Simply written guide to hydroponics. Covers systems, mediums, nutrients, and history with a links page and introduction also provided.
   http://www.hydroponics.3dmega.com