The private, personal character that makes online social networks appealing to people looking to stay in touch with friends and family is also leading data protection advocates from around the globe to criticize the sites.
Armed with some of Europe's most wide-reaching data protection laws, critics in Germany have accused social networks and other online sites of collecting and making commercial use of personal information without members' explicit permission - as required by law.
Google and Facebook are both under investigation in Germany, as well as other countries, for their privacy and data retention practices.
Deutsche Welle looks at the actions being taken against a number of Web sites and how Germans are using the Web and social media.
The research made headlines and national stars of its two lead scientists. Stem cells, they said, can be created from blood cells. No sooner had the papers been published than doubts began to emerge.
A Berlin court has ruled that anatomist Gunther von Hagens will be allowed to open a museum displaying preserved human bodies and body parts. The museum is set to open in January 2015.
New findings show that beavers and Arctic ground squirrels are contributing more to climate change than previously thought. Information on wildlife's role in global warming will help inventory greenhouse gas sources.
Global warming is changing the Arctic - while some herald the opportunities that come with easier access, the thaw could literally yank the ground out from under communities. DW talked to an expert about the risks.