Other
Tarantula's Burrow: British Spiders What Is a Spider?
A list of characteristics that a creature must satisfy to be considered a spider, as well as a list with pictures and descriptions of spiders commonly found in the UK.
Library of Congress
Loc: Everyday Mysteries: Spiders and Their Webs
Have you ever wondered how spiders avoid getting stuck in their own webs? Check out this excellent explanation.
Other
Arachnophiliac: Sun, Wind Scorpions Aka Solufigids
A site on the sun and wind scorpion species. They are not actually a scorpions, and they don't like the sun. A description with pictures. Discusses habitat.
Ducksters
Ducksters: Animals for Kids: Tarantula
Investigate the arachnid Tarantula which is a large harry eight-legged poisonous spider.