OAIster, the union catalog that harvests open archives and institutional or disciplinary repositories worldwide searching for academic and scientific publications, has now reached TEN million records!
“Developed at the University of Michigan’s Library, OAIster is a collection of digital scholarly resources. OAIster is also a service that continually gathers these digital resources to remain complete and fresh. As global digital repositories grow, so do OAIster’s holdings.
Popular search engines don’t have the holdings OAIster does. They crawl web pages and index the words on those pages. It’s an outstanding technique for fast, broad information from public websites. But scholarly information, the kind researchers use to enrich their work, is generally hidden from these search engines.
OAIster retrieves these otherwise elusive resources by tapping directly into the collections of a variety of institutions using harvesting technology based on the Open Archives Initiative (OAI) Protocol for Metadata Harvesting. These can be images, academic papers, movies and audio files, technical reports, books, as well as preprints (unpublished works that have not yet been peer reviewed).
OAIster harvests data provided by 730 contributors from 49 countries and 6 continents, and can be searched by (descriptive) metadata such as Title, Author/Creator, Subject, Language (or Entire Record). These days you can also take a survey for contributing to its improvement.