https://www.teachthought.com/current-events/britannica-digital-adds-pear-deck-learning-assets-to-social-studies-platform/
Alexia Tsotsis @ TechCrunch 12/03/2019
http://chronicle.com/blogs/profhacker/managing-links-with-nuzzel/60677
ProfHacker 08/11/2015
http://www.lessig.org/2012/12/please-welcome-lessig-org-back-from-its-slumber/
Lessig 12/31/2012
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