TORONTO – Business continues to boom for private radio in terms of national ad sales, which rose 6.1% in the third quarter of this fiscal compared with the same time last year, according to figures from Canadian Broadcast Sales. CBS says that bookings for the fourth quarter of the broadcast year are on track to climb 9.9% from Q4 last year, with even bigger gains predicted for the first quarter next year. “In the near term, radio will continue to enjoy the positive momentum of the past several years. The early revenue pacing for the first quarter of 2008 is...