University of Michigan
Bio Kids: Critter Catalog: Spiders
Spiders are easy to study as they are found everywhere. This page answers common questions about spiders, including classification information. It also has many excellent photographs of these critters and links to information on the most...
University of California
Ucmp: Araneae Spiders
A site from UC Berkely on the araneae class, the true spiders.
Soft Schools
Soft Schools: Spider Sense Quiz
Take this interactive, multiple-choice quiz over spiders, then review your score and any missed questions at the end.
Soft Schools
Soft Schools: Spiders All Over
Take this interactive, multiple-choice quiz over different types of spiders, then review your score and any missed questions at the end.
Other
Araneae, Spiders of North West Europe: Purse Web Spiders
A detailed description of the primitive purse-web spider. Includes pictures and information on how it catches its prey