Here are some suggestions for online mapping tools that visualize environmental and social indicators. You will find maps for specific states, the United States as a whole, and a global atlas. You might also discover maps created for your own area, either by government agencies, academic centers, or grassroots/non-profit organizations.
This guide lists digitized, full-text searchable databases for newspapers and magazines, with a focus on databases that have historical (e.g. 20th century and earlier) coverage. In order to search these databases, use terms that would have been in wide usage at the time of the article, even if those terms or words would not be in use currently. It's good practice to compile lists of keywords from your reference sources, secondary sources and from other primary sources.
We have access to many more newspapers and magazines than are included in the databases listed on this guide. To search for a specific newspaper or magazine, for publications from a certain city, or for a specific article, use CLIO: