Musings About Librarianship – “In the last month, there were two interesting developments that caused quite a stir in my twitter feeds (see discussions here and here). Firstly, there was an interesting announcement on the Unpaywall mailing list, that Unpaywall had detected that Semantic Scholar which was one of the biggest repository sources they were tracked had removed most of the articles it was hosting. Unpaywall stated that Semantic Scholar removed over 8 million papers, but at the time of the posting, Unpaywall had alternative locations for most of the papers hosted but there was still over 1 million paper that they could not find alternatives to and hence 1 million papers that used be classified as Green OA in Unpaywall was now closed…Secondly this news, was followed by a even bigger announcement by Microsoft Research that they were discontinuing Microsoft Academic..”