The World Wide Web has become in a very short time one of the greatest repositories of information in human history. In countries that have adopted Internet technologies, information travels across national borders and cultural divides with relative ease. However, even though there is this great accumulation and flow of information, access to it is becoming increasingly difficult - with so much information from which to choose, it's not so easy to find exactly what you need.
Every month seems to bring a new web search engine to try and keep up with growth of the Internet.
So many Web search technologies are being introduced that it's nearly impossible to keep up with them. Only a meager 20 percent of Web pages use them, but that doesn't mean meta data are outdated or some new technology is better. In fact, if you use meta data correctly they will enhance access by determining how, when, and why your Web pages are viewed. The term metadata has been used only in the past 15 years, and has become particularly common with the popularity of the World Wide Web. But the underlying concepts have been in use for as long as collections of information have been organized.