A battle for U.S. computer giant Dell heated up Friday as corporate raider Carl Icahn and other investors made a new offer and called a planned buyout led by company founder Michael Dell a "giveaway."

The investor group, which holds around 13 percent of Dell shares, said in a regulatory filing it would urge shareholders to reject the private equity buyout and opt instead for its "superior" recapitalization plan, keeping the company public.

Facebook is in talks on a potential $1 billion deal to buy the Israel-based GPS mobile navigation app Waze, The Wall Street Journal reported.

The report late Thursday, citing unnamed sources, said the discussions were "serious" but that no deal had been finalized.

Canada is looking to criminalize cyber-bullying, Prime Minister Stephen Harper announced Friday, after a pair of teenage suicides provoked by unrelenting online harassment.

"The Internet is in most ways a great development for our society," Harper said at a round-table on ways to protect youth from cyber-bullying.

Fed up with Twitter friends ruining the plots of her favorite TV shows, high school senior and budding software engineer Jennie Lamere took matters into her own hands.

She's finalizing an Internet browser plugin called Twivo that uses keywords inserted by the user -- like a show's title or the names of characters and actors -- to intercept any plot-spoiling tweets.

Amazon, long rumored to be developing its own smartphone, is working on a screen that allows people to see 3D images without glasses, the Wall Street Journal reported Thursday.

The Journal said the Internet retail giant is working on several gadgets to add to its offerings of Kindle tablets and e-readers.

Cyber thieves around the world stole $45 million by hacking into debit card companies, scrapping withdrawal limits and helping themselves from cash machines, U.S. authorities said Thursday.

The massive heist unfolded "in a matter of hours," said the U.S. prosecutor's office for Brooklyn, New York.

YouTube on Thursday launched a pilot program of paid channels for its online video service, calling it part of an effort "that enables content creators to earn revenue for their creativity."

The Google-owned video-sharing service said the launch with "a small group of partners" starts Thursday with subscription fees starting at 99 cents per month.

Despite rules requiring U.S. flyers to turn off their phones and other electronic devices, many people leave them on, a survey showed Thursday.

The survey released by the Airline Passenger Experience Association and the Consumer Electronics Association suggests U.S. regulators could ease the ban, which assumes that electronic devices could interfere with navigation equipment.

Struggling Finnish handset giant Nokia unveiled on Thursday its next-generation of lower-end mobile smartphones as it seeks to gain traction in a market expected to be worth $15 billion by 2015.

Nokia chief executive Stephen Elop released the $99 Asha 501 touchscreen Internet-enabled model at a global launch in New Delhi that especially targets emerging market users moving up from their no-frills first mobile phones.

Using mobile health technology to monitor patients in poor urban areas could improve residents' access to health care while also reducing health care spending, a study conducted in a Rio de Janeiro hillside "favela" slum suggested Wednesday.

The study, by the New Cities Foundation, looked at the effects of bringing state-of-the-art health care diagnostic tools to sick and elderly residents of Rio's Dona Marta favela, an underserved shantytown up a steep hill from most conventional health care services.