When searching in some directories, you may be told to use Boolean Operators. Britannica Internet Guide Internet sites on a variety of topics, selected and rated by Britannica's editorial staff. The Scout Report Web sites selected, reviewed, and classified by a team of librarians and subject specialists. Published every Friday both on the web and by e-mail. Yahoo Search Engines.
Automatic indexing is used to discover, retrieve, and index web sites without human involvement.
Anyone with an Internet account can put up any information she wants, so it becomes extremely important for us to evaluate the web sites we look at with a critical eye. Chemistry Resources on the Web Reference Desk Links to scientific glossaries and dictionaries. Includes links to lesson plans, web-based activities and tutorials, and other resources in different subject areas. Busy Teacher's Web Site K-12 Links to source material, lesson plans, reference material, classroom activities. Discovery Channel School Lesson Plans Education Index Directory of education and education-related sites on the Internet, divided by subject and level or form of education.