Articles are excellent sources of information.  Here are some reasons why you might want to use articles:

• Articles provide specific information about a topic.
• Articles are published quicker than books, so they are good sources for current or popular topics.
• Scholarly articles provide bibliographies or references that you can use to find other sources related to your topic.
• Articles come in a variety of shapes and sizes.  Some are popular and usually shorter and some are scholarly and are typically longer and more detailed.