Time Magazine's annual Person of the Year issue came out today, with Facebook founder Mark Zuckerberg's face on the cover. Tweeters immediately started commenting on the choice, praising Zuckerberg's achievement, suggesting better alternatives and predicting next year's winner.

Politico's Mike Allen noted the Person of the Year's age.

AP: At 26, Zuckerberg is the youngest TIME "Person of the Year" since the first one chosen, Charles Lindbergh; he was 25 when named in 1927less than a minute ago via web

Howard Kurtz thought the Twitter founder may have been a more relevant choice.

Stronger case for Zuckerberg as Time's person in 08, 09, when Facebook was newer, more transformative. This was a Twitter year; Biz robbed!less than a minute ago via ÜberTwitter

@pourmecoffee offered a title to the Winklevoss twins, who sued Zuckerberg for stealing their idea.

TIME picks Mark Zuckerberg as Person of the Year. Winklevi must settle for "Most Litigious" from Twins Magazine.less than a minute ago via tGadget

Jack Tapper is disappointed with Time's pick, again.

Once again @Time editors demonstrate POTY no longer for the person who had the greatest impact on the year. Next year: @Sn00ki?less than a minute ago via ÜberTwitter

Joe Weisenthal hasn't forgotten about the founder of Chatroulette.

Crazy how fast things change. Earlier this year, you would have bet on Andrey Ternovskiy winning Person of the Yearless than a minute ago via TweetDeck

@delrayser has a cynical take on the excitement.

Always amazed how invested people are in what's essentially the yearly choice of a person who will sell the most magazines.less than a minute ago via TweetDeck

The Drudge report moves from one social phenomenon to another.

MOVE OVER ASSANGE!  TIME NAMES MARK ZUCKERBERG 2010 'PERSON OF THE YEAR'... http://drudge.tw/f9D7Sqless than a minute ago via Drudge

Nate Silver defends Zuckerberg's influence.

No offense, but most of the people calling  Time behind the curve for picking Zuckerberg as its POY are not exactly ahead of the curve.less than a minute ago via Twitter for BlackBerry®

Jonathan Martin at Politico acknowledges that Facebook isn't just for young people anymore.

In fairness to Time, Facebook is just now getting big across generational lines.  Really penetrating deepless than a minute ago via ÜberTwitter

Lizz Winstead didn't want to leave out Vermont Senator Bernie Sanders, with his recent filibuster.

Bernie Sanders voted Sublime Magazine's Person of the Yearless than a minute ago via TweetDeck

Unable to remove himself from the magazine, Joe Weisenthal marveled at the runners up.

I can't believe that Hamid Karzai came so close to winning Time Person Of The Year (#4.)less than a minute ago via TweetDeck

Jim Geraghty predicts Time will stick with the social media theme.

I guess the founders of Twitter are a lock for Time's Persons of the Year in 2012.less than a minute ago via TweetDeck

Jonah Goldberg is already thinking ahead for next year.

So scifi nerds when will the person of the year be an artificial person? I say scifi nerd with love, btw.less than a minute ago via Twitter for iPhone