Yesterday we told you about a great roundup of presentation tips. Today, productivity blogger Merlin Mann has opened a great discussion where you'll find many more. He asks:

What s your best presentation tip? What s the never break it rule for PowerPoint/Keynote decks? What s your favorite site, article, or link on great presentations? How do I get that Lessig-, Jobs-, or Veen-like fu that makes audiences so giddy?

There are some great tips in the answers he gets.