Most of us recognize the value of speaking on business topics to increase our credibility yet few of us spend enough time and energy to make the presentations as impactful as they could be.
Tom Antion's blog is a great resource of tips and ideas. I hope you'll enjoy it as much as I do.
A recent post conveys advice from Terry Paulson, Ph.D.,CSP,CPAE who recommends scripting the beginning and end of your presentation, but don't tightly script the whole talk.
"...most speakers lose far more than they gain by preparing exact wording for an entire speech. Craft and shape your opening and closing, but don't fall victim to scripting the whole thing. As a pilot, you plan and execute with precision your takeoff and landing, but once airborne know how to enjoy the ride taking people to the locations they want to see."
Tom's whole post on the topic is here. If you ever speak, I think you'll learn a lot from subscribing to his blog.