Book excerpt: An essential resource for information professionals, Gale Directory Databases is the most comprehensive source of information on databases, database products, online services and database vendors and distributors. Covering more than 20,000 databases and related products in all subject areas worldwide (in English as well as other languages), Gale Directory Databases is a one-stop resource for information on publicly available products accessible through an online vendor or batch processor, or available for direct lease, license or purchase as a CD-ROM, diskette, magnetic tape or handheld product.