More about yahoo

The other approach—the one taken by the Yahoo! directory—is to have actual
human beings physically look at each Web page and stick each one into a
hand-picked category. After you get enough Web pages collected, you have
something called a directory.
Unlike a search engine, a directory doesn’t search the entire Web—in fact, a
directory catalogs only a very small part of the Web. But a directory is very
organized, and very easy to use, and lots and lots of people use Web directories
(such as Yahoo!) every day.
Of course, that’s not to say that the Yahoo! directory is perfect. Far from it. For
starters, it’s small—only 2 million pages, versus 3 billion or so in Yahoo!’s Googlesupplied
Web Search index. (That means that Yahoo!’s directory content represents
less than 1⁄10 of 1 percent of the total number of pages currently published on
the Web—not very comprehensive at all.)
Fortunately, you don’t have to limit yourself to the listings in the Yahoo! directory;
Yahoo! supplements its directory listings with search results from a thirdparty
search engine. Read on to learn another little secret about Yahoo!’s search
capabilities.