The Australian army vowed Thursday to track down and punish any serving members who posted offensive comments on RAR Buddies, a Facebook page that contains racist, sexist and abusive material.

ABC television revealed that more than 1,000 former and serving soldiers belonged to the site, providing a disturbing insight into the culture that exists inside the ranks.

Megaupload boss Kim Dotcom on Thursday accused U.S. authorities of mounting a "misleading and malicious" case against him, saying there was no way they could win a landmark online piracy action.

Free on bail in New Zealand after winning a legal fight with prosecutors who wanted to keep him behind bars after his January 20 arrest, a defiant Dotcom was confident of beating charges brought by the U.S. Justice Department and FBI.

A coalition of European and U.S. consumer advocacy groups made a last-ditch appeal to Internet search and advertising giant Google on Wednesday to delay changes to its privacy policies.

In a joint letter to Google chief executive Larry Page, the Trans Atlantic Consumer Dialogue (TACD) urged Google to delay implementation of the changes which are scheduled to take effect from Thursday.

IT giant Microsoft launched Wednesday the test version of a new generation of Windows operating system, which is designed to run seamlessly on computers and rapidly-growing tablets.

"Windows 8 is a generational change in the Windows operating system," said Windows president Steven Sinofsky.

It is the nightmare of the wired world -- a smartphone low on battery.

But Swedish group myFC says their water-powered charger could be the fix even in deepest Amazon, while battery giant Duracell is championing a push for cars and even stadiums to be built with energy "mats" that would power up phones.

Over 100 leading global and regional ICT professionals are set to take the stage at the ArabNet Digital Summit 2012 to share their expertise on the latest trends and topics in the field of online business.

The Summit, to be held between March 27-31 in Beirut, will bring together leading experts from the global web and mobile industries with digital professionals and entrepreneurs from across the Arab world.

Interpol said that 25 suspected members of the loose-knit Anonymous hacker movement have been arrested in a sweep across Europe and South America.

The international police agency said in a statement Tuesday that the arrests in Argentina, Chile, Colombia and Spain were carried out by national law enforcement officers working under the support of Interpol's Latin American Working Group of Experts on Information Technology Crime.

With its own fortunes sinking, Yahoo is angling for a windfall from rising Internet star Facebook.

The effort will hinge on the latest in a series of high-tech tussles over intellectual rights. Yahoo and Facebook are sparring over whether Facebook's eight-year-old social network relies on some of the innovations that Yahoo has patented or acquired since it launched its website in 1994.

Twitter said Tuesday it was expanding its advertising program to mobile users, the latest bid by the short-messaging service to boost its money-making efforts.

The San Francisco-based company said users of Apple's iPhone and Android devices would begin seeing "Promoted Tweets" in their timelines in the coming weeks.

Spanish police arrested four suspected hackers of the subversive online movement Anonymous accused of sabotaging websites and publishing confidential data on the Internet, officials said Wednesday.

They are suspected of hacking political parties' and companies' websites and adding fangs to the faces of leaders in photographs online, and publishing data identifying top officials' security guards, police said in a statement.