The Ebsco Discovery Service contains Ebsco's own e-content -- more than 120 thousand e-books, as well as articles from more than 10 thousand e-journals. But in addition to its own content, Ebsco indexes the library catalog (physical inventory of books, print journals, documents, CD-Roms, etc.) and also several other ebook and e-journal sources that the library owns or leases. In most cases, Ebsco's linking technologies will direct users to the specific e-content in these third party resources. In the case of the library catalog, Ebsco shows the call number and whether the item is available or checked out, in real-time. The library's digital repository is not yet indexed in the Ebsco Discovery Service, and has to be searched separately.