Persuasive technology
Picking up on the theme of how user experience can learn from behavior sciences, Peter Sullivan forwarded a good site about research in persuasive technology. The researchers chose the somewhat unfortunate nickname of "captology" for their work (which despite its marketing-hucksters-from-hell overtones is actually based on an acronym for "Computers As Persuasive Technologies.") In fact, their research is more benign, looking at how traditional persuasive techniques can be applied to technology, and it's discussed in an interesting set of white papers
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