Look at this example from the 
search engine:
Click here if you want to open a new browser window to AltaVista®. You can also do a "Bookmark" in Netscape® or add it to your "Favorites" in Internet Explorer® if you want to go back to it later: http://www.altavista.com).
1. Notice on the screen below that we entered “prevention and hiv” as our search concept. We are looking for Web sites that give us information about preventing HIV.
2. See the “Sponsored Matches” on the screen below? These Web sites have paid to be included at the top of the retrieval list. These sites are not more important or relevant, they've simply paid for this position -- at the beginning of the retrieval list. This is a very common practice among search engines.
If we scroll down the AltaVista® screen, below, we'll see that this search -- "prevention and hiv" generated over 400,000 "hits" or Web sites. That number of hits is simply too big, so we may want to narrow our search in some way.
TUTORIAL MENU
