Peer Reviewed Journal - A publication, usually scholarly, in which articles are reviewed by a panel before being accepted for publication. Also sometimes called scholarly or refereed.
Periodical index - A subject listing of what articles have been published in what magazines and journals. Some periodical indexes are general in scope and others are subject-specific.
Phrase searching - Allows you, in a database, to search for particular words in a particular order. Useful for proper names, names of companies and names of government departments. Most phrase searches should be in quotations, such as "Department of Justice".
Plagiarism - Stealing someone else's ideas or information and presenting them as your own.
Primary sources - Primary sources are results of experiments or original research, literary works, autobiographies, original theories, and other materials.
See Also: Secondary sources
Proximity - Some search tools use proximity of two or more search terms to determine relevancy of a result. Proximity operators specify how far apart matching words can be. They may also specify word order. Details vary considerably from system to system.