7 Speaking Trends -- How to Make a Powerful Presentation

http://delicious.com/akarrer/prospeaker

They use personal stories and anecdotes. But dont let it upstage you.

Speaking and sport

Nick R Thomas - A Public Speaker's Blog

Because my talks often involve anecdotes about amusing incidents that have happened at other speaking engagements, audiences usually assume that at my next booking I will be telling a story about them! But now, many years later at Durrington some continued participation was clearly expected of me and I played along but, generally speaking, when you've finished, you've finished - don't upstage the speaker who's on after you! You should never upstage the speakers who follow you.