diff --git a/README.md b/README.md
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+++ b/README.md
@@ -947,6 +947,7 @@ algorithms, knowledgebase and AI technology.
 * [Microsoft Academic](http://academic.research.microsoft.com)
 * [NRC Research Press](http://www.nrcresearchpress.com)
 * [Open Access Scientific Journals](http://www.pagepress.org)
+* [OA.mg](http://oa.mg) A database of over 240 million scientific works, with PDFs for all Open Access papers in their catalogue (~ 40 million)
 * [Open Grey](http://www.opengrey.eu)
 * [The Open Syllabus Project](http://opensyllabusproject.org/)
 * [Oxford Journals](http://www.oxfordjournals.org)