Its content is in a constant state of change. Given its vast size and dynamic character, finding information on the Internet can be both challenging and rewarding. There is no authoritative, centralized catalog or index of all information on the Internet. Yet, a variety of tools are available to help you locate useful sources when you need them. This document will offer some basic tips for success in using such tools.
Directories are essentially subject trees of links to Web pages.
Each document listed in a directory has been evaluated individually by a member of the directory s staff. When you query a search engine, it finds documents that closely match your terms and lists them in order according to a relevance formula. Click on the engine s help screen link to learn advanced searching techniques.