The ultimate source of great talks, and ideas worth spreading, is TED.com.

A recent one is a must for anyone interested in pitching and was given in compelling fashion by Nancy Duarte.  Check it out!

http://www.ted.com/talks/nancy_duarte_the_secret_structure_of_great_talks.html?utm_source=newsletter_weekly_2012-02-07&utm_campaign=newsletter_weekly&utm_medium=email