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Here is another great example for spreading ideas:
http://www.ted.com/
On this webpage, you find great speaches.
Just to give you one example: Tony Robbins about what motivates people - a great 20 minutes video:
Thank you so much Petra for sharing this on your facebook wall. By the way - everybody who knows Petra Fürst should congratulate her to passing the magister and the coaching testing on one day today. Have a great party Petra. You deserve it :-)