<< From what I have been told the Arbitron radio ratings are done by the selected listeners keeping a hand written log or diary of what stations they listen to. >>
Exactly. A couple of years ago my family got ramdomly selected to keep diaries of what radio stations we listened to, when and for how long. We recieved lil diary books in the mail, and for a certian 7 day period we kept track of our radio listening, and then mailed the books back at the end of the 7 days.
DV