Article databases provide a way to search for articles on particular subjects in magazines or journals. Databases may include the full text and/or graphics of articles or they may only include the author, title, date, journal title, issue and page numbers for each article.
Todd Library subscribes to over 50 different article databases. A few are general, but many are specialized. "Periodical index" is another term used for print volumes that can help you find articles in magazines or journals.