A communication student provides tips in how to combat speech anxiety by breathing, having a conversational tone during the speech and to how keep (or at least simulate) eye contact. 

Deborah Grayson Riegel provides some insights about public speaking anxiety and how to overcome it with some simple and powerful steps like: breathing, renaming our emotions from scared to excited, among others. 

The University of Houston offers a visualization technique to help cope with Public Speaking Anxiety. You can download either the mp3 and/or the transcript for free. 

Robert E. Burns a visiting lecturer at Bridgewater State College talks about Speech Anxiety and the use of his method called "The 7 P's of Speech Anxiety Reduction". Moreover, he talks about how himself overcame the fear to public speaking. 

3 Helpful tips that will help you provide impact to your speech during delivery. 

Overview of important points when creating a speech, such as: Audience analysis, Effective introduction,  Making the speech easy to understand, Helping the audience to listen, Keeping audience interest, Creating an effective conclusion,  Practicing for effective presentation.

"The techniques I've listed are effective, but here's the thing: No list you find on the internet is going to magically make you more confident. No list is going to take action and grant you instant CSS skills, or give you extra money, or grow your savings account, or make you a better writer. In order for these techniques to be effective, you have to act on them. You have to pick one or two and practice them. Then move on to another pair and practice those." This is an interesting article that contains a lot of helpful tips and sources in how  attack every aspect of the building confidence process.

The title says it all... :)