“Your number one task as a speaker,” says TED impresario Chris Anderson*, “is to transfer into your listeners’ minds an extraordinary gift — a strange and beautiful object that we call an idea.” Among his key points in this great eight-minute talk:

• One, limit your talk to just one major idea.
• Two, give your listeners a reason to care.
• Three, build your idea, piece by piece, out of concepts that your audience already understands.
• Four, here’s the final tip: Make your idea worth sharing. 

*See also this really interesting profile of him. [Via Lin Sebastian Kaiser]