This updated manual is intended to provide users with complete descriptions of the databases available for database searches, as well as full details of procedures for submitting search requests to the New York State Library. Two major changes in services scheduled to begin on January 1, 1985, are noted in a brief introduction. Sections cover clients and services, including pilot project participants, other users, hospital libraries, and the legislature and state government agencies; computer searching, what it is and its advantages; topic suitability; reference interviews to determine the search topic; factors influencing the success or failure of a database search; receipt of a database printout (citations); and use of Boolean logic to formulate searches. Appendices present a subject guide and descriptions of available databases, charges for database use, procedures for submitting requests by teletype--for database searches through the New York State Interlibrary Loan Network (NYSILL)--or by mail through the state library. Also included are sample database search request forms (NYSILL and mail) and addresses where further questions may be directed. (THC)