Online singing sensation Rebecca Black topped a 2011 most-viewed YouTube videos list Tuesday that included spoofs starring pets, talking babies and pop music star Michael Bolton.

The collection of the year's most popular YouTube snippets was based on an analysis of the more than one trillion video views logged at the Google-owned website.

Google on Tuesday ramped up its investment in clean energy by backing the construction of solar panels that will feed electricity to California's power grid.

The Internet giant announced that it is pumping $94 million into Recurrent Energy projects near the state's capitol of Sacramento, raising its investments in Earth-friendly power generation to $915 million.

A German man has been charged with allegedly spreading Islamist propaganda on the Internet glorifying suicide attacks and seeking support for militants abroad, the federal prosecutor's office said Monday.

The 19-year-old German convert to Islam is suspected of running an Internet site for several months which showed videos, pictures and text containing jihadi and radical Islamist content, it said.

The death of Kim Jong-Il was the most talked-about topic on China's popular micro blogs on Tuesday, with more than 10 million posts, most of them critical of the former North Korean leader.

Many were in stark contrast to the stance taken by China's official media, which has hailed the former dictator as a close friend who dedicated his life to his country.

Century-old technology colossus IBM depicted a near future in which machines read minds and recognize who they are dealing with.

The "IBM 5 in 5" predictions were based on societal trends and research which the New York State-based company expected to begin bearing fruit by the year 2017.

AT&T threw in the towel Monday on its $39 billion deal to buy T-Mobile USA and grab the lead in the U.S. wireless business after running into stiff opposition from U.S. regulators.

AT&T said it would have to take a $4 billion charge for dropping the offer, first made in March, to buy T-Mobile from its parent Deutsche Telekom.

The future of the U.S. Global Positioning System is taking shape in a vast white room south of Denver, where workers are piecing together the first of more than 30 satellites touted as the most powerful, reliable and versatile yet.

The new generation of satellites, known as Block III, will improve the accuracy of military and civilian GPS receivers to within three feet (about one meter), compared with 10 feet (about three meters) now, according to the Congressional Budget Office.

Even if you love the iPad, you're probably not keen to write your next novel using its on-screen virtual keyboard. You may not be thrilled to type up a lengthy email with it, either.

Steve Isaac felt the same way. A Seattle-based software designer who worked on an early tablet at computing startup Go in the 1990s, Isaac was delighted when the iPad came out last year. He loved its svelteness, battery life and wireless connectivity.

Greek police have arrested two youths suspected of stealing over 309,000 Euros from an international bank, officials said Monday.

A 21-year-old Briton is also sought in connection with the case in Thessaloniki.

Saudi billionaire Prince Walid bin Talal and his Kingdom Holding Company announced a combined investment of $300 million in the social networking site Twitter, in a statement Monday.

"Our investment in Twitter reaffirms our ability in identifying suitable opportunities to invest in promising, high-growth businesses with a global impact," Prince Walid said in the statement released on Kingdom Holding's website.