The Internet is huge.
Search engines seem to change all the time.
Search Engines are searchable indexes to information available on the internet. They use spiders, also called web robots , to go out and pick up keywords from web sites, then use these keywords in their indexes. When you enter one of these keywords in your search, the engine brings up a list of pages containing that keyword. For more details on search engines and how they work, check a terrific site from the University of South Carolina . The Internet is huge.