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.
Hitchhiking robot hitchBOT, created by researchers in Canada, has been damaged beyond repair, ending its first American tour. The robot had previously traveled safely across Canada and parts of Europe.
If you saw a mouse with a device attached to its head and a scientist using remote control to make it spin around in circles, what would you think? Don't be fooled by first impressions. DW spoke with those scientists.
Pandas remain among the most endangered bears in the world but the births of two sets of twin cubs bring hope.
Less than half a decade since the Arab Spring rocked North Africa and the Middle East, experts say the effects of climate change could trigger the next round of regional unrest.