In this article, the author explains how librarians can ensure that their Web site visitors find the information they need. The pros and cons of four options used to help people find information on a Web site are explored. These options are: (1) redesigning the site; (2) creating drop-down, second-level menus for second-level pages; (3) adding a search engine; and (4) adding a site map and/or site index. The author states that site menus and search engines are not the best tools because they only point to whole pages, not to locations within those pages. Among the benefits of a site index is that its format is similar to a back-of-the-book index, so it is familiar to users and little training is required. The author also provides guidance about what web site indexing tools can do (e.g., alphabetically sorting and hyperlinking index entries) and suggests two dedicated Web site indexing programs (HTML Indexer or the freeware XRefHT32) to use. The article details two case studies for a new site for a public library and an index to a school site. (Contains 7 endnotes.)