There are even search engines that search several other search engines at once, called metasearch engines. Categorizes webpages systematically in a yellow pages like structure. Some offer other options for refining a search, such as limiting by date. An engine that searches two or more other engines at once. Since no single search engine covers all of the webpages existing, these are handy for covering a lot of web ground with one search.
Most search engines are a combination of one or even all of the above.
Some allow you to do a simple search at first, with the option of doing advanced searching if you wish. Remember, no single search engine will access all of the webpages on the World Wide Web, so it is a good idea to try several search engines for a more comprehensive search. These are just the most commonly used of the many search engines available. Click on the button in Internet Explorer to jump to one of several alternating search engines. Click on the or the buttons in Netscape to jump to one of several search engines.