OAIster is a union catalog that allows metasearching (single query searching) across millions of digital resources available on the Internet from over 1,000 repositories, databases, and web sites from a variety of data contributors. OAIster can be searched by Title, Author/Creator, Subject, Language or Entire Record. Searches can also be limited by resource type (text, image, audio, video, dataset) and sorted by title, author, date and hit frequency.
Searchable digital resources can range from an old-time advertisement of electric refrigerators (from the Library of Congress American Memory project) to Harriet Beecher Stowe memoirs (from the University of Michigan Digital Library Production Service Making of America collection) to the latest research on nanotubes. Included are items such as:
- digitized (i.e., scanned) books and articles
- technical reports
- dissertations and theses
- preprints and working documents
- audio, video, and image files
- datasets (e.g., downloadable statistics files)
For each document, OAIster captures the descriptive information such as title and authors using standard Internet protocols for open archives.
Depends on source repositories.