The TIME 100: Do these people shape your world?

Thanks to my dad for today's topic!

TIME magazine has published its list of the "100 people who shape our world." Dad sent the list in an email, with the challenge: how many of these people have you heard of? And do you know what they do?

Before I link to the TIME list, which groups people by their occupations, let me give you the list like Dad sent it to me, without context:

How many of these people have you heard of? And do you know what they do?

• J.J. Abrams
• George Clooney
• Dixie Chicks
• Ellen DeGeneres
• Nicolas Ghesquiere
• Wayne Gould
• Philip Seymour Hoffman
• Arianna Huffington
• Ang Lee
• Renzo Piano
• Rain
• Rachael Ray
• Jeff Skoll
• Kiki Smith
• Will Smith
• Zadie Smith
• Howard Stern
• Meryl Streep
• Reese Witherspoon
• Rob Pardo
• Daddy Yankee
• Tyra Banks
• Dane Cook
• Matt Drudge
• Stephen Colbert
• Mike Brown
• Kelly Brownell
• Nancy Cox
• Richard Davidson
• Kerry Emanuel
• Jim Hansen
• Zahi Hawass
• Bill James
• John Jones
• Ma Jun
• Jim Yong Kim
• Steven Levitt
• Jacques Rossouw
• Andrew von Eschenbach
• Jimmy Wales
• Geoffrey West
• Muqtada al-Sadr
• Ellen Johnson-Sirleaf
• Hugo Chavez
• George W. Bush
• John McCain
• Mahmoud Ahmadinejad
• Ayman al-Zawahiri
• Hillary Rodham Clinton
• Pope Benedict
• Condoleezza Rice
• Wen Jiabao
• Ehud Olmert
• Pervez Musharraf
• John Roberts
• Ismail Haniya
• Angela Merkel
• Jigme Singye Wangchuk
• Archbishop Peter Akinola
• Junichiro Koizumi
• Oprah Winfrey
• Bill & Melinda Gates
• Bono
• Michelle Wie
• Wynton Marsalis
• Angelina Jolie
• Bill Clinton & George H.W. Bush
• Steve Nash
• Orhan Pamuk
• Elie Wiesel
• Jan Egeland
• Joey Cheek
• Chen Guangcheng
• Ian Fishback
• Wafa Sultan
• Pernessa Seele
• Ralph Lauren
• Mukhtaran Bibi
• Paul Simon
• Al Gore
• Katie Couric
• Vikram Akula
• Tom Anderson & Chris DeWolfe
• Franz Beckenbauer
• The Flickr Founders
• Sean Combs
• Jamie Dimon
• Brian France
• Tom Freston
• Huang Guangyu
• Omid Kordestani
• Eddie Lampert
• Patricia Russo
• Sheikh Mohammed
• Anne Mulcahy
• Nandan Nilekani
• Jim Sinegal
• Steve Wynn
• The Skype Guys
• Dieter Zetsche

I've "heard of" most of them, but can honestly tell you "what they do" for only 42 of the 100. I'm pretty discouraged by that, since it's kind of my job to have heard of pretty much everything.

But go look at TIME's site, because seeing the names in context helps jog your memory (and tells me I really need to brush up on my reading about scientists!)

So how'd you do? And are these really the people that shape your world?