Databases are how articles are indexed; indexes primarily tell you that articles exist opposed to providing the full-text of articles. These databases cover literature that is related to this subject area. The full list of WU database is available by alphabetic list or subject. There are also guides available to walk you through how to find materials.
If you're off-campus, you will be prompted for your Willamette username & password.
Periodicals/journals are important sources for current news and information about recent research. Databases are often the best way to locate these articles.