The BASE* is Up!

bielefeld-academic-search-engine-docs

The figure shows that over 100 million documents* (about 60% open access) were open through 5,000 content providers.The growth rates (22% for documents, 27% for content providers) are particularly impressive given the high pre-existing content rate.

In the article entitled “Dramatic Growth of Open Access” additional resources are mentioned such as: OECD iLibraryDirectory of Open Access BooksarXivsocArXivbioRxivRePECInternet Archive

* BASE: Bielefeld Academic Search Engine

**Currently in BASE: 103,458,284 Documents of 5,028 Content Sources

Image and Data available here

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