The always-energized British chef Jamie Oliver has long been a healthy-cooking enthusiast. But in recent years, he's rolled up his apron and battled i...

You can find NBC Nightly News anchor Brian Williams on television, the Web, and even in the back seat of a New York City taxi -- so why does he refuse...

It's time to reveal your picks for the Ultimate 12 Game Changers. They are an eclectic mix of those accustomed to the spotlight and those who have been working under the radar.

This week we announced the top Game Changers in three more categories: World, Impact/Education, and Healthy Living.

Time for the next round of HuffPost's 2011 Game Changers -- the innovators, mavericks, visionaries, and leaders who are changing the way we look at the world and the way we live in it. This week we announce Game Changers in Culture, Business/Technology, and Sports.

Last week, we announced our picks for the top 2011 Game Changers in Green, Politics, and Media -- the innovators, mavericks, visionaries, and leaders in those fields who are changing the way we look at the world and the way we live in it. And we asked you to vote for the Ultimate Game Changer in each category. The response has been great, with hundreds of thousands of votes cast. Today we are announcing the Game Changers in three more categories: Style, Food/Travel, and Entertainment. Look over the slideshows we've put together giving you the rundown of who we picked, why we picked them, and how they are changing the game. Then vote for the Ultimate Game Changer in each category. Click here to vote for the Ultimate Game Changer in Style, here for the Ultimate Game Changer in Food/Travel, and here for the Ultimate Game Changer in Entertainment.

HuffPost's Game Changers series celebrates 100 innovators, visionaries, and leaders in 12 categories who, whether working in the spotlight or under th...