Results come from Exumo's own index. Data from YouTube; Exumo is not affiliated with YouTube.

1. 16:08

   DIY Workshop - Make a Powerful Air Cannon for $50

   NightHawkInLight · Feb 28, 2009 · 273.5K views

2. 9:45

   Evan Williams on what's behind Twitter's explosive growth

   TED · Feb 27, 2009 · 101.8K views

3. 14:31

   Making art of New York's urban ruins | Miru Kim

   TED · Feb 27, 2009 · 386.4K views

4. 16:49

   Richard Pyle: Exploring the reef's Twilight Zone

   TED · Feb 26, 2009 · 57.4K views

5. 7:21

   Captain Charles Moore on the seas of plastic

   TED · Feb 25, 2009 · 226.5K views

6. 20:08

   Ed Ulbrich: How Benjamin Button got his face

   TED · Feb 23, 2009 · 170.8K views

7. 0:04

   DX200 Red Laser Ignites Black Powder

   styropyro · Feb 21, 2009 · 10K views Short

8. 21:24

   Jill Tarter: Why the search for alien intelligence matters

   TED · Feb 20, 2009 · 185.4K views

9. 1:05

   50mW Green Laser Handheld from BudgetGadgets

   styropyro · Feb 20, 2009 · 219.3K views

10. 18:17

    Sylvia Earle: How to protect the oceans (TED Prize winner!)

    TED · Feb 19, 2009 · 342.9K views

11. 17:07

    Incredible high school musicians from Venezuela! | Gustavo Dudamel

    TED · Feb 19, 2009 · 1.6M views

12. 18:57

    José Antonio Abreu: The El Sistema music revolution | TED

    TED · Feb 19, 2009 · 193.6K views

13. 18:51

    The next species of human | Juan Enriquez

    TED · Feb 17, 2009 · 884.6K views

14. 20:46

    Barry Schwartz: Our loss of wisdom

    TED · Feb 16, 2009 · 592.9K views

15. 7:10

    David Merrill: Toy tiles that talk to each other

    TED · Feb 12, 2009 · 169.5K views

16. 19:29

    Your elusive creative genius | Elizabeth Gilbert

    TED · Feb 9, 2009 · 5.4M views

17. 20:17

    Mosquitos, malaria and education | Bill Gates

    TED · Feb 6, 2009 · 688.3K views

18. 21:40

    Bill Gross: Great ideas for finding new energy

    TED · Feb 3, 2009 · 109K views

19. 18:47

    Playing the Cape Breton fiddle | Natalie MacMaster

    TED · Jan 31, 2009 · 1.2M views

20. 16:06

    Joe DeRisi: Hunting the next killer virus

    TED · Jan 30, 2009 · 30.6K views