TORONTO - John Harding, president of the Radio Marketing Bureau advised its board of directors this week that he will not seek a renewal of his current contract when it comes due in Spring 2006. He’s been with the organization since 1998. "It's with mixed emotions that I'm electing not to renew my contract when it's due next April, but I feel it's the right time for me to consider new directions for my career outside the Radio Marketing Bureau," said Harding (right) in a release. "It feels great to leave the radio industry and the Radio Marketing Bureau in...