Included here are selected services that provide extensive resource directories organized by subject. Users can browse the subject hierarchy for a single link to a resource which fits a specific need, or gather multiple links on a particular topic. The resources are collected and placed in the hierarchy by people, as opposed to electronic robots as in the Searchable Indexes section of the Toolkit. In most cases the Subject Directories are also searchable, but the major benefit of each tool in this section is the ability to review multiple resource titles related to specific topics.
Note: At this time we are not aware of a good example of an online Library of Congress classification system for Internet resources. As with all sections of the Scout Toolkit, we welcome suggestions.