At Hope Libraries, we subscribe to several full text databases of published primary sources. They are searchable by keyword, so you can do very precise searches on your topic in newspapers, magazines and journals. Because these databases are so large t is helpful to narrow by date range to the time period in which you are interested.
Subject: Interdisciplinary
Content/Description: Contains digitized images of virtually every work printed in England, Ireland, Scotland, Wales, British North America and works in English printed elsewhere from 1473-1700.