The Hidden Web - Tapa blanda

In just a few years a generation has grown up believing that everything can be found on the Web and indeed there are now more than two billion documents in cyberspace, not including the 550 million documents that can be accessed via the "deep" or "invisible" Web. But how do you separate quality, authoritative information from all of the dross? It seems that the difficulties of finding "valid" information on the Web are growing as fast as the Internet itself. New search tools appear every few weeks and the familiar ones are constantly evolving. Effective searching in this ever-expanding environment requires new strategies. Maureen Henninger addresses these issues and assumes that for most reader the Internet is no longer a mystery, and the finding of quality information has become their major concern. So often it is the worthwhile information that remains hidden to Web users, even very experienced ones. This book provides strategies for uncovering valuable information from a vast number and variety of sites confronting users.