Subject Directories A subject directory
provides categorized lists of links arranged by subject (Figure 2-14). Using this search tool,
you locate a particular topic by clicking links through different levels, moving from the general to the specific. Each time you
click a category link, the subject directory displays a list of subcategory links, from which you again
choose. You continue in this fashion until the search tool displays a list of Web pages about the desired topic.
The major disadvantage with a subject directory is that users have difficulty deciding which categories to choose as they work through the menus of links presented.