Pada November 2011 Google mengumumkan bahwa Knol akan dihapus. Konten telah dipindahkan oleh pemilik ke laman berbasis [[WordPress]], [[Annotum]]. Knol telah ditutup pada 30 April 2012, dan seuasemua konten telah dihapus pada 1 Oktober 2012. Antara tanggal tersebut konten tidak dapat dilihat, tetapi bisa diunduh dan diekspor.<ref>{{cite web |url=http://knol.google.com/ |title= Knol has been discontinued as of May 1, 2012 |publisher=Google knol |date=2012-04-30 |accessdate=2013-05-13 |quote=Knol has been discontinued as a service, but we've worked with Solvitor and Crowd Favorite to create Annotum, an open-source platform based upon WordPress that allows you to continue authoring and publishing scholarly articles. To learn more about this announcement, see our Frequently Asked Questions. .}}</ref>
