Intro

• Yahoo, which was here before Google, became a portal as a means to growth, somewhat neglecting its index and not employing a very viable search enigine. Now, Yahoo wants to beat Google at the search engine game because Google has demonstrated how successful a company can be focusing on complementing the distribution of information resources with relevant advertising. To that end Yahoo acquired a variety of database companies and searcj tools (Overture, Inktomi, AlltheWeb, AltaVista, and more) and built a very large search engine database, claimed at, roughly, 20 billion Web pages (in late 2005).
• The company has also improved its search interface, though it, as most search engines, still lacks the sophistication of the commercial bibliographic content databases.

Search functionality

• One, look at the help pages at http://help.yahoo.com/help/us/ysearch/. They will give you a thorough understanding of Yahoo Search capabilities.
• Two, you are all thoroughly versed in the basics of searching, so I'm primarily going to provide an overview of the search capabilities in the below screen capture.