Research project conducted by the University of Florida that seeks to enlist the help of volunteers in studying urban spiders.

Promotes study of the Arachnida, particularly spiders, pseudoscorpions and harvestmen.

An annotated collection of web resources related to arachnids.

Devoted to the study of all arachnid orders except the Acari. Fosters communication among arachnologists.

Information and consulting agency for scorpions and other arachnid animals. Features images and related links as well.

Organization data, articles from recent issues of the Journal of Arachnology, arachnid photos and links.

Information about Arachnida research as well as images of spiders and scorpions.