New York Mayor Michael Bloomberg's much heralded bike share program, which was meant to get rolling this summer, will now be launched only in March next year, authorities said Friday.

"The software doesn't work," Bloomberg said in his weekly radio address. "We're not going to put out the system until it works."

Amazon.com on Friday announced that "The Hunger Games" trilogy has replaced the "Harry Potter" saga as the online retail giant's best-selling series of books.

"Since debuting in 2008, Katniss Everdeen and the Hunger Games have taken the world by storm, much as Harry Potter did a decade before," said Amazon.com books and Kindle editorial director Sara Nelson.

Uganda is tightening its Internet security after hackers attacked the prime minister's website to post statements supporting gay rights, the country's Internet regulator said Friday.

Activists hacked into the website of the prime minister's office earlier this week and posted a fake press release announcing the minister's support for a gay pride parade.

Apple's stock price leaped to a new high on Friday amid rumors the tech giant is poised to hit the market with new versions of iPhone, iPad, and Apple TV devices.

Shares rose nearly two percent to $648.11 by the end of the formal trading day on the Nasdaq exchange, buoyed by a Jefferies investment bank analyst advising clients that the price could climb to $900.

Scientists in the United States on Thursday said they had devised a rubbery robot, inspired by the squid and octopus, which can crawl, camouflage itself and hide from infrared cameras.

The Pentagon-backed gadget is the latest type of a so-called soft machine, meaning silicone-based robots that are made from squidgy, translucent polymers.

The Anti-Defamation League (ADL) in the U.S. expressed concern about Hizbullah re-launching its smartphone al-Manar TV applications, which were previously removed by Apple and Google.

ADL was the first to report on the app, which appeared on July 25 and directs users to content from al-Manar, the Lebanon-based Hizbullah satellite television station. Apple removed the app four days later from iTune stores and Google followed two days after removing the app from Google Play.

IBM on Thursday announced a deal to buy a U.S. firm specializing in high-performance solid state memory, which is fast replacing spinning disks used to store data in computer hard drives.

IBM did not disclose financial terms of the agreement to acquire Texas Memory Systems (TMS), which is based in Houston.

Japan's embattled Sharp Corp. is considering selling off part of its main operations as it looks to plug a gaping hole in its balance sheet, a report said Friday.

The consumer electronics giant, bracing for a huge net loss this fiscal year, is set to pull out of copiers and air conditioners, to focus on its more competitive liquid crystal display (LCD) division, the Nikkei business daily said, without citing sources.

Beginning Thursday, Facebook's early investors and a few directors will be able to sell stock they own in the company as a lock-up period barring them from doing so begins to expire.

Thursday marks 90 days after Facebook's initial public offering. That's when early investors who were selling stockholders in the IPO get to sell their shares, according to regulatory filings. Other shareholders, such as many Facebook employees, will be able to sell beginning in October. The last lockup deadline expires next May, a year after Facebook's IPO.

Lenovo Group said Thursday its quarterly profit rose 30 percent on strong sales in developing markets but growth slowed amid global economic weakness.

The world's second-largest personal computer maker said it earned $144 million in the three months ending June 30 on $8 billion in global sales. The profit growth rate was down from the previous quarter's 59 percent increase.