The wife of Jeff Bezos is giving a thumbs-down to a recent book about her husband's company, Amazon.com Inc.

On Monday, MacKenzie Bezos posted a one-star review on the Amazon page for Brad Stone's "The Everything Store," which came out last month and has been received positively by critics and Amazon readers. Bezos wrote that the book was filled with inaccuracies and biased against her husband and Amazon. Spokeswoman Sarah Gelman of Seattle-based Amazon confirmed that the review was indeed written by MacKenzie Bezos.

The Singapore government said Monday it was on "heightened vigilance" following threats from the activist hackers' group Anonymous, but denied that any of its websites had already been compromised.

The statement by the Infocomm Development Authority (IDA) came as Singapore's biggest publisher confirmed users were having difficulty accessing some of its online sites, although no group has claimed responsibility for the incidents.

BlackBerry abandoned hopes of finding a buyer, and instead pegged its future on a $1 billion cash infusion as it shook up top management Monday and named a new chief executive.

The Waterloo, Ontario-based company's announcement comes two and a half months after its largest shareholder Fairfax Financial Holdings Inc. offered to buy the rest of the business and take it private.

Google executive chairman Eric Schmidt called on China to open up Internet access and voiced concern at its latest crackdown on online freedoms in an interview in Hong Kong Monday.

"I have a strong opinion and my opinion is there should be freedom of speech to pursue one's goals for ideas," he told the South China Morning Post.

It is becoming the preferred social network for American teens. It is an important "second screen" for TV viewers of NFL football and "Dancing With the Stars."

It also happens to be a tool for social activists which arguably can help topple governments.

Instagram began displaying ads Friday, as Facebook moved to start making money from the smartphone photo sharing service it bought in a billion-dollar deal last year.

The first ad to pop up was a sponsored photo of a Michael Kors ladies' watch, artfully displayed on a table set elegantly for coffee and biscuits.

For one Japanese man, being at the front of a Tokyo queue as the new iPad debuted Friday was his way of saying "thank you" to Apple after a year that turned his life around.

Takaaki Sasaki, who designed an app that became a hit in Japan, was one of hundreds who poured into Apple's flagship store in the glitzy Ginza district as the doors opened on the latest tablet offering from the sector's agenda-setter.

Six of the biggest U.S. technology firms are urging Congress to rein in the National Security Agency by requiring more transparency about surveillance and improved privacy protections.

In a letter to a Senate committee, the tech giants applauded the introduction of the USA Freedom Act aimed at ending bulk collection of phone records and improve privacy protection in the Foreign Intelligence Surveillance Court.

Google is selling a new Android smartphone that it hopes will become more like a clairvoyant friend than a piece of hardware.

The Nexus 5 phone unveiled Thursday is the first device to run on Kit Kat, the latest version of Google's Android operating system.

Airline passengers will soon be allowed to use a range of mobile electronic devices in flight with very few restrictions, U.S. aviation authorities said Thursday.

The move by the Federal Aviation Administration put an end to stricter regulations that have barred the use of electronics during taxi, takeoff and landing for the past 50 years.