Cisco Systems owned up to some miscalculations in its video collaboration strategy but showed off some promising future capabilities in a briefing with media this week.

Intuit's Quickbooks Online service suffered an outage this week that left "a small subset" of customers unable to access their data, but the company says the problems with the on-demand accounting software have now been fixed.

Sony on Friday released an iPhone app to access its streaming Music Unlimited service, part of its efforts to expand its online platforms to devices from rival manufacturers.

One of China's top Twitter-like sites, Sina Weibo, is working to attract Japanese companies to advertise on its platform by helping the firms open and use accounts on the microblogging service.

Facebook introduced its own mobile photo app, Camera, on Thursday, bringing richer photo-sharing features to the platform even before the company closes its deal to acquire the popular photo-sharing app Instagram.

When I signed up for a Twitter account in the summer of 2009 I spent some time thinking about whether or not I should protect my tweets. As a novice Twitter user, I had to decide whether the benefits of protecting my tweets outweighed the drawbacks. Looking back, I do not regret my decision to protect my tweets, and I'll tell you why.

If you're one of Gmail's 193 million users worldwide, you probably rely on the service -- and its add-ons -- every day. Popular among users for its customization features, Google constantly adds to its arsenal of Labs and brings new features mainstream to simplify processes and save users time.

Question-and-answer sites like Yahoo Answers may offer a quick way to ask questions and get answers, but they tend to be plagued by wisecracks, poor spelling, and generally low quality. On the other hand, a new site targeting this niche, Quora, is going to great lengths to keep quality high.

Back in November 2010, Facebook announced plans for a "social inbox" -- a space that would serve as a hub for all communications that people use online or via mobile phones, ranging from text messages and chat messages to e-mail messages, too.

Despite sharing every banal aspect of my life in mind-numbing detail, I remain some way short of 150,000 Twitter followers.

What is Facebook's secret to keeping the world's largest user base content? Sticking to well-proven software design principles, one study has concluded.

'Tis the season to begin ramping up online shopping activity, and for retailers that means doing all they can to ensure their websites are up, highly available and able to handle peak capacity. Looming in many IT managers' minds is the cautionary tale of Target, whose website crashed twice after it was inundated by an unprecedented number of online shoppers when the retailer began selling clothing and accessories from high-end Italian fashion company Missoni.

Google+ just opened its doors to the world by enabling open signups and moving to the beta, testing phase. The nascent social network is still thin on features and ways for businesses to properly use it, but its minimalist approach has gained Google+ millions of users in a very short period.

There are more than a few critics of cloud computing, even at PCWorld; I'm probably one of them. But I've been turning over in my mind different perspectives on the cloud. I've tried to set aside the views of the IT executive, who seems to dominate the debate.

Things just keep getting worse for MySpace. The former social networking hub recently announced it would cut nearly half of its global workforce as part of a restructuring effort.   As many as five hundred MySpace employees worldwide will soon be looking for work as the site continues to redefine itself from a social network to an entertainment content site with social networking features.