ABSTRACT
https://PhillyHistory.org contains more than 95,000 map and photographic records from the City of Philadelphia Department of Records and other local institutions, searchable and viewable by geographic location and other criteria. The Department of Records further expanded public access capabilities through the release of https://PhillyHistory.org optimized for smartphones, enabling users to view historic photos of a location as they stroll the streets of Philadelphia. https://PhillyHistory.org serves as a case study for how libraries can use mobile technologies to increase access to their special collections and provide learning opportunities that transcend the traditional web site.
