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.

Real Madrid striker Cristiano Ronaldo may be the latest high-profile star to sign up to Twitter but it seems the days of savvy, social-networking soccer players could soon be numbered.

Apple on Tuesday unveiled Aperture 3, the latest update of its photo editing and management software.

Apple is rumored to be working on a wireless tablet that would serve as an e-reader. The device could be CEO Steve Jobs’ attempt to boost his legacy by saving the struggling print media.

If consumers like the new Windows 7 operating system, going on sale today, they’ll have the much-maligned Windows Vista to thank. With consumers lukewarm to Vista, both Microsoft and the computer makers realized the standard way of business just wasn’t cutting it.

Scientists are one step closer to knowing what you’ve seen by reading your mind. Though practical applications are decades away, the research could someday lead to dream-readers and thought-controlled computers. “It’s what you would actually use if you were going to build a functional brain-reading device,” one scientist says.

With rumors piling up about a forthcoming Apple tablet, it appears more and more likely that such a device will emerge soon. But what’s still unclear is how this gadget will set itself apart from Apple’s multimedia-savvy product line.

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.

Scientists have discovered the first confirmed Earthlike planet outside our solar system, they announced Wednesday.

BlackBerry has introduced its official Twitter application, offering users of the most popular smartphone brand a feature on the rival iPhone that they now can only covet.

Bill Gates is backing the development of new nuclear-power tech. Some say the Microsoft founder is helping us move toward a “nuclear Renaissance.” Others say he’s looking for a “silver bullet” that doesn’t exist.

It is a problem of massive plastic proportions — a giant floating debris field, composed mostly of bits and pieces of plastic, in the northwest Pacific Ocean, about a thousands miles off the coast of California.

A Florida man already jailed on charges of hacking into major retail computer networks has been indicted a third time for allegedly stealing data on a record number of credit and debit cards.

Large Internet companies spend millions on consultants and technology trying to get their sites to rank among the highest results on Google. Everyone else has to rely on the poor man’s search-engine optimization: the exchange of links. But does that still work?

A new generation of deep-sea submarines light enough to launch from a yacht could open up the ocean’s depths to amateur explorers.

Over the past 20 years, robotics have revolutionized surgery, and new innovations are continuing to push the boundaries of medicine.