They are a great starting point for people new to the web, assisting users to find information in a relatively short period of time. The most popular and comprehensive directory on the Internet. Yahoo is organized into hierarchies from the general to the specific, hypertext links allow users to move through the categories and to link to web pages found in each section. Mental health pages can be found in the general Health category. I still refer to Yahoo when I need a quick reference.
Users can browse by subject heading or full-text.
Items are rated and reviewed. Similar in set-up to Yahoo, but not as huge a database. Not bad though. For a more comprehensive search of the entire Internet, the best place to go is a searchable index or Search Engine. Unlike directories, search engines are computer programs or robots that scour the web looking for matches to queries, they also compile indexes of resources.