Transformers On-Line Encyclopedia
Information on every major "continuity" for U.S., UK, and Japan Transformer cartoons and comics. Describes people, places, groups.
http://www.geocities.com/Area51/Station/6563/tf-ency.html

Storm Encyclopedia
Covers the basics about severe storms with notable examples of Mother Nature's ill-tempered handiwork.
http://www.weather.com/encyclopedia/

Encyclopedia of Canadian Theatre
Thorough coverage of present and past theater news and productions.
http://www.canadiantheatre.com/

Encyclopedia of American Silver Marks
This site contains identification of marks of American Silver Manufacturers including Gorham, Tiffany, Towle, Duhme, Wallace, Lunt, and Watson. All marks are clearly illustrated and include a short history of each company. Links to other silver collecting sites are provided.
http://www.edensterling.com/silvermarks.html

Encyclopedia of Life Sciences
Originally commissioned and peer reviewed articles across the life sciences. Online encyclopedia requires paid subscription.
http://www.els.net/

Technology and 20th Century Change In Warfare
http://victorian.fortunecity.com/benjamin/440/

Cyclepedia: Motorcycle Information
Motorcycling information, repair manuals, technical data, and useful statistics organized by manufacturer. Completely searchable and easy to use.
http://www.cyclepedia.com/

Natural Remedies Encyclopedia
Natural Remedies for over 500 diseases, such as cancer, heart disease, sexually transmitted diseases, childhood diseases, with a special section on preventive health.
http://www.pathlights.com/nr_encyclopedia/

Creation-Evolution Encyclopedia
Over 700 printed pages of material discussing the controversy between creation and evolution.
http://www.pathlights.com/ce_encyclopedia/Index.htm

Tallship Fan
Encyclopedia of sailing ships online: data, photos, history, contact addresses and other information about traditionally rigged sailing ships.
http://www.tallship-fan.de/index_e.htm

The Satellite Encyclopedia
The Satellite Encyclopedia contains fact sheets with basic information such as launch date, country of origin, official identification, and payload description (EIRP maps). Extended launch vehicle section. Future satellites descriptions. Over 4000 pages and 9000 keywords.
http://www.tbs-satellite.com/tse/online/

Virtualsources.com
Find information on every country in the world. There are massive amounts of statistics on everything from population to a country's legal system.
http://www.virtualsources.com/

Peakware World Mountain Encyclopedia
Includes reference information such as height, location, first ascent data, photos, web links, summit log entries for hundreds of mountains worldwide.
http://www.peakware.com/

The Book of Threes
Read and contribute on the both natural and unnatural occurrences or the number three.
http://www.threes.com/

Encyclopedia of Trotskyism On-Line (ETOL)
A resource center for the study of the international Trotskyist movement.
http://www.marxists.org/history/etol/index.htm

Encyclopaedia of Land Surveying Links
Alphabetical list of links to land surveying, geodesy, GPS, GIS, and related fields most specific to the Southern California Land Surveying Environment.
http://members.aol.com/t52berg/pubpage.htm

Encyclopedia Mythica
Over 6,000 entries on mythology, folklore, and legend. Includes some images and stories.
http://www.pantheon.org/

Kyoto Encyclopedia of Genes and Genomes
Current knowledge of molecular and cellular biology in terms of the information pathways of interacting molecules or genes and links from the gene catalogs produced by genome sequencing projects.
http://www.genome.ad.jp/kegg/

MathWorld
Glossary of terms. Material ranges from undergraduate to research level.
http://mathworld.wolfram.com/