It has all the hallmarks of big brother is watching. Some would say it's the dark ops of political parties these days, others of the cyber generation would say it's fair game.
It's a getting to know you exercise without you knowing. It's gleaning information extracted from your online postings or from other, more innocent means, like from doing your daily shopping using the plastic.
The Americans have got it down to a fine art even if the public think it's a blank canvas, when in reality it's more like a splotchy Pollock.
A few years before Obama's last successful campaign there were a group of well heeled Californian women in their 40s identified as the single most likely demographic group, willing and able to hand over cash for a chance to dine with The President and George Clooney. The boffins stored the data collected and eventually put their insight to use, identifying another celebrity, willing to open her home and the Dinner with Barack contest was born.
The punters weren't to know that the idea for the contest had come from a data-mining discovery about some supporters: their affection for contests, small dinners and celebrity.