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.
Facing threats, the head of a renowned research department in Germany has stopped experimenting on monkeys. The institute he works for will carry on doing so. DW takes a look at where Germany stands on animal testing.
Obesity will hit Europeans hard in the coming years, according to the World Health Organization. Only one EU country is getting skinnier.
Dolphins on the Solomon Islands face a threat that is rare today. Island residents kill the mammals for their teeth, which are used as a currency locally.
Photographer Sharon Beals hopes her pictures of nests will invite viewers to start learning about the lives of nests' builders, and to take measures to help birds in any way they can.