The project, part of Stanford University's Rural West Initiative, maps newspapers over time. "With American newspapers under stress from changing economics, technology and consumer behavior, it's easy to forget how unibiquitous and important they are in society. For this data visualization, we have taken the directory of US newspaper titles compiled by the Library of Congress' Chronicling America project - nearly 140,000 publications in all - and plotted them over time and space." Used with permission. Copyright The Bill Lane Center for the American West, Stanford University. Via Mediabistro. The map below is for 1956 (click for larger view).