The NLM Gateway allows searching of multiple retrieval systems of the National Library of Medicine with one search query. The searchable systems include: MEDLINE/PubMed, OLDMEDLINE, LOCATORplus, MEDLINEplus, DIRLINE, AIDS Meetings, Health Services Research Meetings, Space Life Sciences Meetins, and HSRProj. The NLM Gateway provides the only access to AIDS Meetings, Health Services Research Meetings, Space Life Sciences Meetings, and HSRProj. The audience for the Gateway includes health care providers, researchers, librarians, students, patients, their families and the public. The Gateway is designed for the Internet user who is new to the National Library of Medicine's resources.