The Big 29: Tubers Still On Top

This week's most intriguing people under 30:

1. Steve Chen and Chad Hurley (28, 29), YouTube founders
2. Maria Sharapova (19), tennis player
3. Shaun White (20), snowboarder/skateboarder
4. America Ferrera (22), actress
5. Beyonce Knowles (25), musician/actress
6. Scarlett Johansson (22), actress
7. Mark Zuckerberg (22), Facebook founder
8. Danica Patrick (24), Indy Racing driver
9. LaDainian Tomlinson (27), NFL running back
10. LeBron James (22), NBA forward
11. Ian Johnson (20), Boise State running back
12. Kevin Rose (27), Digg founder
13. Reggie Bush (21), NFL running back
14. Ludacris (29), musician/actor
15. Shakira (29), musician
16. Ivanka Trump (25), business executive
17. Justin Timberlake (25), musician/actor
18. Shawn Fanning (26), SNOCAP founder
19. Jennifer Hudson (25), actress/singer
20. Evangeline Lilly (27), actress
21. Michelle Wie (17), golfer
22. B.J. Novak (27), writer/producer/actor
23. Ehren Watada (28), U.S. Army First Lieutenant
24. Emily Blunt (23), actress
25. Kirsten Dunst (24), actress
26. Troy Smith (22), Heisman Trophy winner
27. Maggie Gyllenhaal (29), actress
28. Jake Gyllenhaal (26), actor
29. Kenan Thompson (28), comedian/actor

Newbies: proposing player, heir to the real estate throne, Office humorist, Army brat
Out: party girl journalist, poker playa, not-so-wild actor, America's princess
Dropping quickly: Heisman winner