In addition to indexing the contents of a library's catalog or a group's union catalog, OCLC is working to index other library collections such as databases that a library manages outside its catalog.
An example of this type of resource is DSpace, an opensource digital archiving system designed by MIT Libraries and Hewlett-Packard to capture, manage and share research in digital formats.
Resources already indexed in WorldCat.org that are included by extension in WorldCat Local are:
- Article-level records from four databases (GPO, ArticleFirst®, MEDLINE, ERIC)
- Licensed eSerials collections (via the OCLC eSerials HoldingsTM service)
- Locally digitized materials created with CONTENTdm that have been added to WorldCat
"Open access" content cataloged into WorldCat by librarians at participating institutions. This includes public domain eBooks and authoritative Web sites.