Best Buy, the subject of a recent book, has an article in the WSJ today (sub, but free this week) on how they're taking a very aggressive approach to segmenting and targeting their most profitable consumers. The tactic has been around for a while, and has been put in play by a cadre of B2B companies, but we're almost never seen this level of assertive analysis done by a major retailer.

[UPDATE] Art Jahnke post his take on this '20% solution' on the CMO magazine blog.

Fascinating stuff for all of your market research and market segmentation fans.