1. Ethan Zuckerman at TEDGlobal 2010: How to listen to global voices - Watch video
2. Clay Shirky at TED@Cannes: How cognitive surplus will change the world - Watch video
3. David Bornstein at Gel 2010: New projects changing the world - Watch video
4. Matt Haughey at Gel 2010: As the founder of Metafilter.com, Matt... - Watch video
5. Charles Leadbeater at TEDSalon 2010 London: Education innovation in the slums - Watch video
6. Derek Sivers at TED2010: How to start a movement - Watch video
7. Anil Gupta at TEDIndia: India's hidden hotbeds of invention - Watch video
8. Asher Hasan at TEDIndia: Asher Hasan's message of peace from Pakistan - Watch video
9. Alexis Ohanian at TEDIndia: How to make a splash in social media - Watch video
10. John Abele at TEDMED2009: John Abele talks about the importance of... - Watch video
11. Fields Wicker-Miurin at TEDSalon 2009 London: Learning from leadership's "missing manual" - Watch video
12. Wade Davis at ideaCity 2009: Endangered cultures - Watch video
13. Philip Rosedale at ideaCity 2009: Building a Second Life - Watch video
14. Randi Zuckerberg at ideaCity 2009: Randi Zuckerberg, Director of Market... - Watch video
15. Scott Heiferman at Gel 2009: The "silver lining of economic collapse" is... - Watch video
16. Soh Yeong Roh at Lift09: Creative communities - Watch video
17. Juliana Rotich at Lift09: Globalism, Mobiles, & The Cloud - Watch video
18. Ramesh Srinivasan at Lift09: Considering how digital culture enables a multiplicity of knowledges - Watch video
19. Seth Godin at TED2009: Seth Godin on the tribes we lead - Watch video
20. Bobby C. Martin, Jr. at Gel 2008: New York City's famous Abyssinian Baptist... - Watch video
21. Chris Abani at TED2008: Telling stories of our shared humanity - Watch video
22. Wade Davis at TED2008: The worldwide web of belief and ritual - Watch video
23. David Griffin at TED2008: Photography connects us with the world - Watch video
24. Laura Trice at TED2008: The power of saying thank you - Watch video
25. Ian Dunbar at EG07: Dog-friendly dog training - Watch video
26. Jessica Flannery at Poptech 2007: The cofounder of Kiva.org, the first... - Watch video
27. Jessica Hagy at Poptech 2007: Equal parts artist, writer and joke teller,... - Watch video
28. Ellen Stephen at Gel 2007: Sister Ellen Stephen, or ES as she's also... - Watch video
29. John Williams at Gel 2007: Frog's Leap creates outstanding wines - but... - Watch video
30. Katherine Fulton at TED2007: You are the future of philanthropy - Watch video
31. Jaime Lerner at TED2007: Sing a song of sustainable cities - Watch video
32. Lakshmi Pratury at TED2007: The lost art of letter-writing - Watch video
33. Brian Eno at Poptech 2006: Musician, producer and artist Brian Eno shows... - Watch video
34. Ji Lee at Gel 2006: The Bubble Project - Watch video
35. Craig Newmark at Gel 2006: Growing Craigslist - Watch video
36. Robert Wright at TED2006: How cooperation (eventually) trumps conflict - Watch video
37. Yochai Benkler at TEDGlobal 2005: Open-source economics - Watch video
38. Jimmy Wales at TEDGlobal 2005: How a ragtag band created Wikipedia - Watch video
39. Howard Rheingold at TED2005: Way-new collaboration - Watch video
40. Steven Johnson at TED2003: The Web and the city - Watch video