Opera, Firefox, Internet Explorer—everybody may and must decide which program to use for surfing. Professionals are glad, for newbies this can be messy. What now, which program to pick? Let’s talk about the backgrounds—and get some tips.

CeBIT in Hanover (Germany), it is still the largest computer trade fair worldwide, even with having shrunk in the past years – this year again with fewer exhibitors and fewer visitors. Some companies though have a CeBIT booth for the first time, like the Web gigant Google.

Where are you right now? That is a question you don’t have to ask many people, as they are constantly informing their friends and the whole world where they are, with geo-tagging services and their cell phone. That can be useful and intelligent, but also problematic.

More and more people register with social networks, like Facebook, Twitter, MySpace and many more. Registering is really easy – but if you want to unregister afterwards, that can get complicated. It is not that simple to say good-bye to the social networks.

It is one week ago that the latest Internet Explorer security problem came known. A security hole that offers hackers complete access to your computer, including all data stored on your hard disk. Of course, such news don’t spread a good feeling. Since last night, the security hole is finally closed. But how can you secure your own computer?

Cloud Computing is everywhere these days. Microsoft has launched Windows Azure, Chrome OS also focuses on your data in the web. But what is it all about? What possibilities and disadvantages does cloud computing have? Finally: Who can or should use it?

Many people send texts, spreadsheets, photos and videos—while not knowing that they contain much information that other people can discover with ease and that might be indiscreet. Who has collaborated on the text? How often has it been revised? What camera and aperture has been used to take the photo? Such info is hidden in [...]