Mining social media for insights

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I'm writing this more for personal reference than any sort of analysis, but I like the idea of capturing notes here, without feeling like I need to do any analysis (a bit like how I share things I've read on Google Reader in the sidebar ---> )

A quick scout through waxy.org's links got me reading about a Facebook engineer's blog post on mining wall postings for 'sentiment data' .

There's a critique of the approach here.

Another, unrelated post describes the use of Mechanical Turk to run psychology experiments, in this case, the 'trolly problem'.

So, no analysis here, just a reposting of links for future reference.