Wikipedia changes: A Web ‘tipping point?’

Today’s Internet is governed by the idea that crowds of people can create the news, share information and collaborate on online projects. So when Wikipedia, the user-written encyclopedia that’s built an empire on this ideal, decided this week to add a layer of oversight to its system, the Web erupted in debate.

If you listen to inventor Dean Kamen, the biggest health problem facing the world today is not AIDS, obesity or malnutrition. It’s a shortage of water. So the man who designed the Segway has invented a device called the Slingshot, a portable, low-energy machine designed to purify water in remote villages.

If you’re on Facebook, Twitter or another social networking site, you could be the next victim of cybertheft. That’s because more thieves are targeting sites like those that provide a gold mine of personal information, the FBI says. Cybercriminals “are very adept to using social engineering,” says one expert.

The Internet is critical to foreign policy, and those who engage in cyber attacks or Web censorship should face international condemnation, Secretary of State Hillary Clinton said in a major speech Thursday.

Google’s much-anticipated new phone, the HTC-designed Nexus One, could make its debut next week.

Personal details and photographs of the incoming head of Britain’s international spy agency have been posted on Facebook, British Foreign Secretary David Miliband acknowledged Sunday.

With Major League Baseball’s playoffs heating up and the World Series on deck, it’s a great time of year to be a baseball fan.

A frog that eats birds and a gecko with leopard stripes are among the 163 new species discovered last year in the Greater Mekong region of southeast Asia, according to a report by the World Wildlife Fund.

A mysterious X-shaped pattern of space debris seen by NASA’s Hubble Space Telescope was probably two asteroids that collided, scientists said Tuesday.

Rage Against the Machine has claimed the prestigious No. 1 spot on the British singles chart on the last Sunday before Christmas, marking the first time in five years the winner of Simon Cowell’s “X-Factor” has not won.

An attack on Twitter shut the social-networking site down for at least two hours Thursday, causing headaches in the online community and glitches in other Web sites like Facebook. Twitter co-founder Biz Stone said the site was hit with a “denial of service attack,” or an attempt to shut the site down by overwhelming it with traffic.

Initially derided for its promotion of inane chatter, Twitter has become a valuable news syndication platform, a campaign tool, and was even used by London’s Royal Opera House to commission an opera libretto made up of tweets sent in from around the world.

When a racist image of first lady Michelle Obama surfaced from the ugliest corners of the Internet last week to top Google’s image search results, the episode shined a spotlight on the mysterious workings of search engines.

Once upon a time royals and elites had to don elaborate disguises to mingle with their people. Now they have Twitter.

Daniel Gray loves automobiles so much that it almost feels wrong to drive another vehicle: “I’ll admit it. I love my car, but I cheat on it with a different car every week,” he said.

If you live in New York City and want to buy an iPhone as a post-Christmas treat, you may run into some roadblocks.

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