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Search the Internet

Subject Directories Subject directories are both organized and selective.  They usually use a hierarchy or "tree" structure, starting with major categories and branching into more specific subcategories, which can go down several branches in the tree structure.  A directory may be either searched or browsed.  New links are selected and added by humans, either a person or a team. As a result, directories tend to be more accurate than search engines but smaller in size and less up-to-date.  Below are some popular Subject Directories. Internet Public Library Librarian's Internet Index  Looksmart Lycos Open Directory Project Yahoo   Search Engines General-purpose search engines try to match search words or phrases to produce results which are links to pages outside the search engine.  Computers continuously add new links. Most search engines now also include a limited subject directory. Search engines tend to be much larger in size than subject directories, but less accurate.  Below are some popular Search Engines. AltaVista Ask.com All the Web  Google Go.com Invisible Web Directory Northern Light   Meta-Search Engines Meta-search engines, or meta-search crawlers, search several different search engines at the same time.  They vary widely in effectiveness and thoroughness but are good for preliminary searches.  Below are some popular Meta-Search Engines. Dogpile Metacrawler Search.com WebCrawler