There are three primary ways of searching the Internet for documents and webpages, although the distinctions between them are often blurred. AltaVista, HotBot, Excite. Also known as directories .
Some gateways are general and cover material on as many subjects as possible.
Yahoo, LookSmart, Snap. Others are specifically designed to cover a particular subject area in depth, or specialise in academic information. Many of these are listed on the Subject Resources page. These are all described more fully on the following pages.