I've answered    questions, and counting, on Quora, a site where  people ask and answer questions. I usually write about public speaking and performance. I'm pretty popular there. My answers get viewed about 1,000 times per week. And they are responses to questions that come up often, when people start thinking about how they might communicate more effectively.

What follows are links to my answers there. 

How do I get a deeper voice?

(Which is better asked as: How do you increase resonance when speaking?)