A search engine is a site that indexes
internet pages based on content. They may
base the results of their search on meta tags, page content, page title, or a combination
of these.
The search engines get their content from spider programs.
Some popular search engines are Alta
Vista, Google and MSN.
A directory is a site that categories the world wide web
based on input submitted by someone. A good example of this is Yahoo.
Its important to note
that search engines work in different ways in how results are shown and how
the search is completed.
For example MSN and yahoo
list and rank website differently to how Google ranks them. |