I wrote recently about improv as an essential but neglected element in online tutoring; and quoted Jean Lave's research on supermarket buyers' purchase patterns and the complex mental choices and procedures (including improvisation) that make up this activity. I should have known that somewhere out there on the web there would be a site that took this further. Here it is -- grocerylists.org, 'the world's largest online collection of found grocery lists'. Add your own lists to it -- social software goes to Tesco.
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