The International Society of Arachnologists is the international professional organization of arachnologists; their web site is a central resource for publication lists, bibliographies, and information on arachnologists.
Current spider taxonomy is summarized, with a complete taxonomic bibliography, in The World Spider Catalog, the web version of N. Platnick's Advances in Spider Taxonomy.
A checklist of the current Opiliones genera is maintained by Adriano Kury. The updated catalog of the Opiliones Cyphophthalmi with images of most holotypes is maintained at the MCZ.