Public speaking

Eli Murphy of Oratium, Kristian Bouw of NotionTheory, Steve MacKley of BeaconFire, and jz of Capital One will mentor about applying to and presenting at Sxsw and other product related conferences. How do I get accepted to speak at conferences? How can I practice and prepare my presentation? What is Sxsw? Should I go? What does it take to announce a product there? What can I get out of it? Do I really need to book a hotel now? How can I get my company to sponsor me? Can we meet there for Product Management Advice, 5 cents? Last, what product conferences are worth going to? What can I get out of each?