The Duolingo streak was designed with habit-building in mind. Learn about the research behind one of Duolingo's key features.| Duolingo Blog
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How To Draw an Owl is a satirical instructional image purportedly illustrating how to draw an intricately detailed owl in two steps.| Know Your Meme
Three simple tricks product I’ve picked up that help me be more than completely useless when I need to wear a Product hat.| jacobian.org
