Hooked: How to Build Habit-Forming Products

That depends on whether you want users or an audience.
http://www.niemanlab.org/2018/04/should-you-design-for-addiction-or-for-loyalty/
* design principle * phones * apps * social media * shown to extend * B.F. Skinner’s * variable rewards * generating more revenue * pull-to-refresh * B.J. Fogg * Nir Eyal * Eyal put it * wondered * delivering unique value * goodwill will extend * Michelle Manafy * Digital Content Next