BASE, the multi-disciplinary search engine for academically relevant OAI-Sources worldwide, which was created and developed by Bielefeld University Library, has hit the 50 million records mark. The records are provided by about 2,700 repositories worldwide. In this year alone, about 10,000,000 records have been indexed. BASE makes it possible to search for more than 50,000,000 documents across 2,700 repository servers worldwide and is one of the biggest search engine for academic OA documents and publications. More here.