1. Michael Dell, 39, $17.95 billion
Chairman/Founder of Dell Computer
2. Pierre Omidyar, 37, $10.05 billion
Chairman/Founder of eBay
3. Jeff Skoll, 39, $4.69 billion
Chairman/Founder of the Skoll Foundation
4. Larry Page, 31, $4.19 billion
President, Products/Co-Founder of Google
5. Sergey Brin, 31, $4.17 billion
President, Technology/Co-Founder of Google
6. Jerry Yang, 35, $2.81 billion
Chief Yahoo/Co-Founder of Yahoo
7. David Filo, 38, $2.57 billion
Chief Yahoo/Co-Founder of Yahoo
8. Ken Griffin, 35, $1 billion
President/Founder of the Citadel Investment Group
9. Dan Snyder, 39, $823 million
Chairman/Principal Owner of the Washington Redskins
10. Marc Benioff, 39, $376 million
Chairman/CEO of Salesforce.com
11. Jeffrey Citron, 34, $346 million
Chairman/CEO/Co-Founder of Vonage
12. Elon Musk, 33, $328 million
CEO/Founder/CTO, Space Exploration Technologies
13. Sean Combs (P. Diddy), 34, $315 million
Chairman/CEO/Founder of Bad Boy Entertainment
14. Tiger Woods, 28, $295 million
Golfer
15. Halsey Minor, 39, $286.1 million
Chairman/CEO/Founder of Grand Central Communications
16. Shawn Carter (Jay-Z), 34, $286 million
Co-Founder of Roc-a-Fella Enterprises
17. Jerry Greenberg, 38, $278 million
Co-Chairman/Co-CEO/Co-Founder of Sapient
18. Raul Fernandez, 38, $263 million
Chairman/CEO of ObjectVideo
19. Jennifer Lopez, 35, $255 million
Actress/Singer/Co-Owner Sweetface Fashion
20. Marc Andreessen, 33, $253 million
Chairman/Co-Founder of Opsware
21. Joe Liemandt, 36, $234 million
President/CEO/Founder of Trilogy
22. Shaquille O'Neal, 32, $222 million
Basketball Player, Miami Heat
23. Michael Robertson, 37, $220 million
CEO/Founder of Linspire
24. Marc Ewing, 35, $217 million
Publisher of Alpinist magazine
25. Julia Roberts, 36, $212 million
Actress
26. Will Smith, 35, $188 million
Actor/Rapper
27. Andre Agassi, 34, $162 million
Tennis Player
28. Jared Polis, 29, $160 million
Chairman/Member at Large of the Colorado State Board of Education
29. Jeff Gordon, 33, $155 million
NASCAR Racer
30. Sudhakar Ravi, 39, $137.1 million
Retired
31. Ashley Olsen, 18, $137 million
Actress/Co-President of DualStar Entertainment
31. Mary-Kate Olsen, 18, $137 million
Actress/Co-President of DualStar Entertainment
33. John MacFarlane, 38, $136 million
CEO of Sonos.com
34. Jeffrey Zients, 37, $132 million
Chairman Advisory Board Co.
35. Sreekanth Ravi, 37, $131 million
Retired
36. Paul Gauthier, 32, $129 million
Retired
37. W. Glen Boyd, 37, $125 million
Retired
38. Britney Spears, 22, $123 million
Entertainer
39. Michael Saylor, 39, $113 million
Chairman/CEO/Founder of MicroStrategy
40. Kevin Garnett, 28, $106 million
Basketball Player, Minnesota Timberwolves
Chairman/Founder of Dell Computer
2. Pierre Omidyar, 37, $10.05 billion
Chairman/Founder of eBay
3. Jeff Skoll, 39, $4.69 billion
Chairman/Founder of the Skoll Foundation
4. Larry Page, 31, $4.19 billion
President, Products/Co-Founder of Google
5. Sergey Brin, 31, $4.17 billion
President, Technology/Co-Founder of Google
6. Jerry Yang, 35, $2.81 billion
Chief Yahoo/Co-Founder of Yahoo
7. David Filo, 38, $2.57 billion
Chief Yahoo/Co-Founder of Yahoo
8. Ken Griffin, 35, $1 billion
President/Founder of the Citadel Investment Group
9. Dan Snyder, 39, $823 million
Chairman/Principal Owner of the Washington Redskins
10. Marc Benioff, 39, $376 million
Chairman/CEO of Salesforce.com
11. Jeffrey Citron, 34, $346 million
Chairman/CEO/Co-Founder of Vonage
12. Elon Musk, 33, $328 million
CEO/Founder/CTO, Space Exploration Technologies
13. Sean Combs (P. Diddy), 34, $315 million
Chairman/CEO/Founder of Bad Boy Entertainment
14. Tiger Woods, 28, $295 million
Golfer
15. Halsey Minor, 39, $286.1 million
Chairman/CEO/Founder of Grand Central Communications
16. Shawn Carter (Jay-Z), 34, $286 million
Co-Founder of Roc-a-Fella Enterprises
17. Jerry Greenberg, 38, $278 million
Co-Chairman/Co-CEO/Co-Founder of Sapient
18. Raul Fernandez, 38, $263 million
Chairman/CEO of ObjectVideo
19. Jennifer Lopez, 35, $255 million
Actress/Singer/Co-Owner Sweetface Fashion
20. Marc Andreessen, 33, $253 million
Chairman/Co-Founder of Opsware
21. Joe Liemandt, 36, $234 million
President/CEO/Founder of Trilogy
22. Shaquille O'Neal, 32, $222 million
Basketball Player, Miami Heat
23. Michael Robertson, 37, $220 million
CEO/Founder of Linspire
24. Marc Ewing, 35, $217 million
Publisher of Alpinist magazine
25. Julia Roberts, 36, $212 million
Actress
26. Will Smith, 35, $188 million
Actor/Rapper
27. Andre Agassi, 34, $162 million
Tennis Player
28. Jared Polis, 29, $160 million
Chairman/Member at Large of the Colorado State Board of Education
29. Jeff Gordon, 33, $155 million
NASCAR Racer
30. Sudhakar Ravi, 39, $137.1 million
Retired
31. Ashley Olsen, 18, $137 million
Actress/Co-President of DualStar Entertainment
31. Mary-Kate Olsen, 18, $137 million
Actress/Co-President of DualStar Entertainment
33. John MacFarlane, 38, $136 million
CEO of Sonos.com
34. Jeffrey Zients, 37, $132 million
Chairman Advisory Board Co.
35. Sreekanth Ravi, 37, $131 million
Retired
36. Paul Gauthier, 32, $129 million
Retired
37. W. Glen Boyd, 37, $125 million
Retired
38. Britney Spears, 22, $123 million
Entertainer
39. Michael Saylor, 39, $113 million
Chairman/CEO/Founder of MicroStrategy
40. Kevin Garnett, 28, $106 million
Basketball Player, Minnesota Timberwolves