The new World Arachnid Catalog is online (see link above), representing the combination of existing catalogs on arachnid orders using the format of the World Spider Catalog and aiming at providing all accessible taxonomic information on eight spider orders in one place. Continuously updated, the majority of taxonomic literature is available for pdf download. The authors hope to inspire new arachnological research across order limits. WAC and WSC are financed by a number of institutions: Naturhistorisches Museum Bern (main sponsor), Naturhistorisches Museum Basel, Zoologisches Museum Hamburg, Western Australian Museum, International Society of Arachnology,  European Society of Arachnology, American Arachnological Society, Arachnologische Gesellschaft, l’Association Française d’Arachnologie, British Arachnological Society, Grupo Iberico de aracnologia, ARABEL, and private sponsors.