Subject Directories Subject indexes or web directories are sites that have collected links to many web sites and arranged them by subject. You can also browse through Yahoo and other subject directories to see what is available on the Web. Explore those links fully. You must be a detective to get the most out of the World-Wide Web. Search Engines Use these for very specific searches, such as proper names, titles, organizations, that you haven't been able to find in Yahoo.
Search engines run their searches on databases made up of words from millions of web pages.
They have not been arranged by subject. If you want information on viruses in general, search the Subject Directories first. Many well-known print magazines are now on the Internet. You can check out our Magazines and Newspapers for links to online versions. Some sites have archives that you can search.