This directory of the major bibliographic databases that are offered by more than one vendor lists the producer, subject, vendor, maximum and minimum online charges, online hit charge, and offline print charge. The pricing systems of nine vendors are described. The directory appears every February and August in "Online Review." (EM)

Lists organizations in the United States which sell or lease software or provide subscription service for on-line information retrieval from the full text of documents in user-provided data bases. (Author/CWM)