Found in 1 comment on Hacker News
sh1mmer · 2010-10-25 · Original thread
I wrote a short essay (http://kid666.com/2009/12/15/your-users%E2%80%99-mental-mode...) about this for "Designing Social Interfaces" (http://www.amazon.com/Designing-Social-Interfaces-Principles...) by Christian Crumlish and Erin Malone.

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