There are essentially three types of search engine, each presenting certain benefits as well as a number of drawbacks.
|The first type, the directory, represented by Yahoo and Open Directory (links open new windows), organizes links into categories and subcategories, which the searcher can access by either following the directory structure to the appropriate category, or by doing a simple search of their database. The advantage of the directory format is the ability to find a specific subject and examine a number of links on that topic. The disadvantage is that Websites are generally placed in only one category, even though a number of issues may be addressed by the page. (Sample Search: In Yahoo: AIDS, link to appropriate information by selecting Diseases and Condition>AIDS/HIV)|