As compared to card catalogs, the content and extent of the online database is not apparent; parts of it become visible only in response to appropriate search strategies. When searches are conducted by librarians on behalf of researchers, the researcher is dependent on the librarian’s expertise and on his or her interpretation of the researcher’s requirements. Remote from the data, and at a remove from the search process, the researcher cannot be certain that the results (if any) are the product of an adequate search. Only first class performance, enabled by subject knowledge as well as technical proficiency, involving imagination and serendipity, and facilitated and sustained by sympathetic management, will inspire confidence in online reference services.