this week's magazine section of the NYTimes, points out there are now 'road side' billboards that can detect and aggrigate what station is most commonly being 'tuned' into by the cars passing by on the road (so early commuters might be older/young and might have different make different choices.. and just a latter or midday travelers on the road might have a different (average)demographic-- and the billboard responds by 'changing' which ad is displayed.

the billboard 'knows' what is being listened to-- because the billboard 'listens' to the radio ways (very weak ones) emited just by tuning in to a station!)and it can detect them going in cars going by at 88 feet a second or so, several hundred feet away!

how much easier it must be to tune into the emmisions from a computer monitor that is rarely or never moved!



my other obsession