In the wake of the devastating terrorist attacks in Paris on November 13, Paris residents took to Twitter to offer accommodation to the stranded using the hashtags #PorteOuverte and #OpenDoor […] As a communication tool, the crowdsourcing power of social media again proved to be effective […] But what does this support, the “cause” in Facebook's words, actually deliver?

When the German publisher Don Stone approached Heba Amin to paint Arabic graffiti on the set of Showtime's series Homeland, her initial impulse was to decline, as others had before her […]  [Instead, she] painted statements such as "Homeland is racist" on the set and then put out an artists' statement. The story went viral and has been covered by more than 60 media outlets in numerous languages.

After a bomb blast Tuesday evening in Yola, Nigeria, took the lives of at least 31 people, Facebook announced the activation of its Safety Check feature, a button that enables people in disaster areas to let their friends and family know they’re out of harm’s way. Zuckerberg made the announcement on his Facebook page. “... we made the decision to use Safety Check for more tragic events like this going forward..."

In an ever more interdependent world, diplomacy is going beyond official relations and reaching out to people at all levels and between all parts of society, he says. “That’s why social media are gaining more importance. At the German Embassy we are using the networks more and more for our media and public relations activities.

Prime Minister Narendra Modi of India, who wooed Nepalis on his two visits last year, during which he promoted his “neighborhood first” diplomacy, is now an object of scorn. Some people have burned effigies of him, and a #BackoffIndia hashtag was recently trending on Twitter. While Nepal’s allies, including China, welcomed the new Constitution, India merely “noted” it.