Nice article from Mark Suster, full of relevant advice:
Most people suck at presenting to big groups. It’s a shame because the ability to nail these presentations at key conferences can be once-in-a-lifetime opportunities to influence journalists, business partners, potential employees, customers and VCs.
So I thought I’d write a piece on how not to suck when you give a presentation.
From http://www.bothsidesofthetable.com/2013/10/20/how-to-nail-a-presentation-to-a-crowd/