Digital projects that purport to offer extensive primary and secondary source materials on any given conurbation are numerous and this particular digital project on the city of Pittsburgh certainly lives up to its name and stated objectives. Created with funding from the Hillman Library Endowment and the Institute of Museum & Library Services, this collection brings together historic material dealing with Pittsburgh from a number of key sources, including the University of Pittsburgh’s Library System and the Carnegie Museum of Art. A great deal of new material has recently been added to the site, including 26 volumes of Hopkins Real Estate maps dating from 1872 to 1939 and a feature that allows users to explore the existing image database by the photo’s location within one of Pittsburgh’s many colorful neighborhoods. Of course, visitors can use the site’s various finding aids and search engines to find exactly what they want, and also learn about recent additions to the database by perusing the “News” section of the site.