There is a wonderful organization founded by Florence Littauer and run by her daughter Marita called ClassServices.com I don't know if you know who Florence is but she's been around many years as a Christian speaker and author. Perhaps you have heard of her book: Silver Boxes. One of about 30 or 40 books she's had published. Anyway, this CLASS is an acronym for Christian Leaders Authors and Speakers Services. They train speakers and writers, give writers opportunities to get their work in front of publishing houses, represent speakers - it's really a wonderful organization. If anyone is looking to increase their writing or speaking skills, they are top-notch. Carol Kent, the author of "I Lay My Isaac Down" - the story of how her perfect Christian son was arrested and found guilty of murdering his stepdaughters' father - also mentors speakers with her Speak Up! organization. She is great too.
Just thought I'd pass those two along. I have dealt with both of them and they are great professional resources.