Digital Public Library of America to add millions of records to its archive
Aquarium, Battery Park, New York City [Postcard], ca. 1931. This is just one of the many resources you can find online through the DPLA website or through apps using its API. — New York Aquarium Postcards collection …
Context & Ripple Effects
The Digital Public Library of America launched just over a year ago, in April 2013, after two-and-a-half years of development, with executive director Benjamin Sewall marking the debut in a short interview. The project's bet was aggregation: rather than digitizing collections itself, it surfaces partner institutions' holdings through one website and an API that third-party apps build on.
This expansion of millions of records is the first major scale test of that bet, and the pickup is unusually broad for a library story — Wired Campus, opensource.com, and board member John Palfrey's own channels all carried it the same week. It extends a line running back to NYPL's Biblion app for iPad in 2011, which showed there was an audience for digitized archival material when it is packaged for discovery rather than locked in reading rooms.
First-order effects
- Partner libraries, museums, and archives whose materials join the aggregation get immediate national visibility through the DPLA site and any app built on its API, without building their own web presence.
- Developers and researchers working against the DPLA API get a substantially larger corpus to query, making the platform more useful with each ingestion cycle.
Second-order effects
- Institutions still holding their collections offline face rising pressure to contribute metadata to DPLA-style aggregators, since discoverability increasingly depends on being in the shared index rather than on one's own catalog.
- App developers have an economic reason to build on the free API, pulling cultural-heritage discovery away from individual institutional sites and toward third-party interfaces.
Third-order effects
- If aggregation keeps compounding, the default way Americans encounter public-domain and archival material shifts from visiting the holding institution to searching a shared national index — reshaping what 'the library' means as an institution.
- Large open aggregations like DPLA establish open metadata as baseline infrastructure for cultural heritage, forcing commercial digitization vendors and subscription databases to compete on added value rather than exclusive access.
The trend: National-scale library aggregation is moving access to cultural heritage from physical institutions and standalone catalogs toward shared indexes consumed through websites and APIs.