There are many videos on public speaking and I encourage you to spend some time reviewing them as you will gain many insights into ways to develop and enhance your speeches.
When I first got online and was looking at information about Public Speaking, I discovered Tom Antion. He has tons of resources on his site and a number of videos as well. Today I am sharing a couple of those videos.
You can find videos of Toastmasters International winners as well. Just go to YouTube and type in the names, or click on the links below.
To your speaking success