Digital Harrisburg is a collaborative initiative by Messiah College and the Harrisburg University of Science and Technology that aims to explore and exhibit the history and culture of Harrisburg, Pennsylvania. Authored by students and faculty at these colleges, often as part of digital history or GIS courses, this website features a number of projects that will appeal to urban historians as well as those interested in learning more about the craft of digital history. Perhaps the biggest highlight of this site is the Interactive Map of Harrisburg in 1900. This remarkable map, which was designed using census data, information from Ancestry.com, and the 1901 Harrisburg Title Company Atlas, allows visitors to view a 1900 residential map of Harrisburg overlaid across a contemporary aerial map of the city. By clicking on a 1900 residence - marked on the map by a blue octagon - visitors can learn about who lived in that home. Digital Harrisburg is an ongoing project; readers can learn about the project's progress and recent updates on the site's blog.