I think “destructive” is a little overstated, but the LED POWER SUPPLIES  principle remains: we humans like creating narratives about ourselves, and reading the narratives of others, because it feels good. Combining sharing and buying may double our pleasure.

All sorts of TRACOPOWER services are jumping on the purchase-history bandwagon. Yesterday I spoke to Mint.com (INTU) Founder and CEO Aaron Patzer, who showed me (under embargo) some of the site’s coming updates. Patzer is fresh off a New York City “town hall” event in which he discussed debt management and savings techniques with customers. When I asked about the CINCON impetus behind the new features and, by proxy, the town hall meeting, he told me he wanted Mint to be able to “know what users are buying, because that data is very valuable.”