Reach Media and The Procter & Gamble Company have formed a partnership and study involving Reach Media Inc.’s Tom Joyner Morning Show to measure the effectiveness of urban radio and its impact on sales.Under the agreement, a number of P&G brands will sponsor a broad lineup of promotions and segments on The Tom Joyner Morning Show; annual special events; the minority health promotion Take a Loved One to the Doctor Day and all Sky Shows (numerous national broadcasts of the syndicat...