This week, Twitter celebrates its sixth anniversary. And although the site is still fairly young, it's difficult to imagine the Internet without the social media mainstay. In less than a decade, Twitter has become a source of breaking news, a breeding ground for viral content, and a hub of social interaction for its millions of users.

Unsurprisingly, young people have been at the forefront of the Twitter revolution, changing the way we all share content. They're using the site to network, share news, photos and videos, and develop a powerful online following. They're young athletes going for gold at the Olympics; Steve Jobs-in-the-makings' revolutionizing the world of technology; and future media moguls. So in honor of the site's big anniversary, we rounded up 20 amazing teenagers who are using Twitter to do great things in their areas of interest. As diverse as these young influencers are, the one thing they all have in common is that they're living proof of the power of Twitter.

Sandwiched between Instagram photos and everyday observations, these teens bring you wisdom, humor and up-to-date news and information. Click through our slideshow below for sample tweets from each account!

Do you follow any of these accounts already? Who are your favorite young tweeters? Leave a comment below or tweet us your suggestions @HuffPostTeen!

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  • @tavitulle

    <strong>Tavi Gevinson, 16, Founder/Editor-in-Chief of <a href="" target="_hplink">Rookie Mag</a>, blogger at <a href="" target="_hplink">The Style Rookie</a>. </strong> Impressive resume and fashion a-lister status aside, her tweets at <a href="" target="_hplink">@tavitulle</a> make her sound just like your hilarious best friend.

  • @aly_raisman

    <strong>Aly Raisman, 18, Olympic gymnast. </strong> <a href="" target="_hplink">@aly_raisman</a> gives her followers a behind-the-scenes look at training for London, hanging out with her best friends -- who also happen to be the U.S. women's gymnastics team -- photoshoots, and more.

  • @niallofficial

    <strong>Niall Horan, 18, member of the band One Direction. </strong> For a true behind-the-scenes look at One Direction, follow <a href="" target="_hplink">@niallofficial</a>. He's the most social media-savvy of the five, so expect tons of tweets talking to his fans, sharing what the band is up to, and oddly enough, sharing the details of what he's currently eating.

  • @schmiddlebopper

    <strong>Emily-Anne Rigal, 18, is the founder of <a href="" target="_hplink">We Stop Hate</a>. </strong> <a href="" target="_hplink">@schmiddlebopper</a> is the inspiring founder of a non-profit dedicated to raising teen self-esteem. But when she's not actively putting an end to bullying, she's just a super-friendly teen on Twitter who shares hilarious quips and observations with her thousands of followers.

  • @lianeal

    <strong>Lia Neal, 17, Olympic swimmer.</strong> In the pool, <a href="" target="_hplink">@lianeal</a> is focused on setting records and breaking boundaries -- she's one of the USA's few African-American Olympic swimmers. But on Twitter, she's a bubbly high school junior. Expect some hilarious dispatches from London once she arrives for the Olympics.

  • @maudeapatow

    <strong>Maude Apatow, 14, blogger at <a href="" target="_hplink">Knitting Goose</a>. </strong> Clearly, <a href="" target="_hplink">@maudeapatow</a> inherited the humor gene from her ultra-funny father, Judd Apatow. Follow this comedian-in-the-making to decide for yourself if she'll be the creator of the next <em>Superbad</em>.

  • @arianagrande

    <strong>Ariana Grande, 19, actress and singer. </strong> If you watch the bubbly <a href="" target="_hplink">@arianagrande</a> on <em>Victorious </em>and can't wait for her debut album, try following her on Twitter. Her upbeat, inspiring tweets are sure make you smile when they pop up on your feed.

  • @chloegmoretz

    <strong>Chloë Moretz, 15, actress. </strong> It's safe to say that <a href="" target="_hplink">@chloegmoretz</a> is completely addicted to Instagramming and hashtagging every charming detail of her off-screen life. If you love Chloe (or Instagram art), add the fashion-forward young star to your must-follow list.

  • @benln

    <strong>Ben Lang, 18, tech entrepreneur, member of Israeli army.</strong> <a href="" target="_hplink">@benln</a>'s list of accomplishments reads like a seasoned veteran of the tech industry: He's founded two start-ups -- EpicLaunch and MySchoolHelp -- and played a major role in nine other initiatives. The 18-year-old currently serves in the Israeli Army, but he still finds time to tweet tech updates and ideas to his 10,000+ followers.

  • @kekepalmer

    <strong>Keke Palmer, 18, actress and singer. </strong> <a href="" target="_hplink">@kekepalmer</a>'s Twitter account has a little bit of everything: one minute, she's standing up for Trayvon Martin and the next, she's sharing her obsession with <em>Fifty Shades of Grey</em>. We love the mix of strong opinions and light-hearted pop culture commentary that characterizes her feed.

  • @markgurman

    <strong>Mark Gurman, 18, senior editor at <a href="" target="_hplink">9to5Mac</a>. </strong> Can't get enough apple? Tech whiz <a href="http://twitter.commarkgurman" target="_hplink">@markgurman</a> cracks Apple's <a href="" target="_hplink">biggest secrets </a>and tweets constantly, so you'll always be in the know about tech-world happenings.

  • @thestyleline

    <strong>Rachel Schwartzmann, 19, fashion blogger at <a href="" target="_hplink">Le Style Child</a> and <a href="" target="_hplink">Le Style Line</a>.</strong> Running in heels doesn't do <a href="" target="_hplink">@thestyleline</a> justice -- try sprinting in Jeffrey Campbell Litas. Follow this ambitious style blogger's thoughts and photos as she navigates her fashion-insider life in New York.

  • @allisonswu

    <strong>Allison Wu, 17, <a href="" target="_hplink">advocate for student voices in education reform and against child sex trafficking</a>, and Huffington Post blogger. </strong> Future educators of America, head over to <a href="" target="_hplink">@allisonswu</a>'s Twitter feed for a passionate, engaging debate over education reform. This student and activist has a bright vision and the dedication to make it a reality.

  • @RubyKarp

    <strong>Ruby Karp, 11, writer for <a href="" target="_hplink">Hello Giggles</a>. </strong> <a href="" target="_hplink">@rubykarp</a>'s hilarious Twitter feed is the only proof you'll need that she's one of the coolest 11-year-olds around. And if you require any more evidence of her awesomeness, check out the <a href="" target="_hplink">video</a> about feminism she made with Amy Poehler.

  • @smosh

    <strong><a href="" target="_hplink"></a>'s Twitter account. </strong> Okay, <a href="" target="_hplink">@smosh</a> isn't a real teenager. But it's created by two 20-something guys who are still young at heart -- which means it's basically a look into the mind of every teen boy. Their Twitter account is just as filled with awesome videos and quirky content as their <a href="" target="_hplink">website</a>.

  • @alexbanayan

    <strong>Alex Banayan, 19, venture capitalist.</strong> He may have been named <a href="" target="_hplink">"the world's youngest venture capitalist"</a> by <em>Business Insider</em>, but <a href="" target="_hplink">@alexbanayan</a> is still humble. His Twitter feed is full of inspiring quotes, so follow him for your daily dose of motivation.

  • @JCannon_nV

    <strong>Jordan Cannon, 19, pro Major League Gamer.</strong> For pro-gamer @JCannon_nV, playing video games is more than a hobby -- it's a high-paying career. He tweets about what he's currently playing and even tweets links, like this one, so you can watch him in action.

  • @trsohmers

    <strong>Thomas Sohmers, 16, tech whiz. </strong> Last year, <a href="" target="_hplink">@trsohmers</a> made <a href="" target="_hplink">headlines</a> for helping MIT design military gadgets and helping Google port its Android operating system to the HP tablet. Now, he tweets news and opinion about the tech world with wit and enthusiasm.

  • @mikaelafoster

    <strong>Mikaela Foster, 13, writer for Hello Giggles. </strong> We love <a href="" target="_hplink">@mikaelafoster</a>'s writing because it's witty, honest, and feels totally natural. When condensed to just 140 characters or less, she still manages to maintain her smart pop-culture commentary.

  • @kciesemier

    <strong>Kendall Ciesemier, 19, Founder and Executive Director, Kids Caring 4 Kids</strong> At age 11, Kendall had two liver transplants. With the desire to help other kids in need, she founded her own non-profit, Kids Caring 4 Kids. Follow <a href="" target="_hplink">@kciesemier</a> for up-to-date news on the non-profit world and inspirational tweets.

Editor's note: This story has been updated, Kendall Ciesemier has been added and a different account has been removed.