Nithin Coca

Six years after its rapid decline, Couchsurfing is still hanging on, but it lacks the same sense of community.

In China, fear and intimidation are leading some to self-censor online.

Rainforests are our global lungs, yet we’ve continued to destroy them. Better satellites can help us understand how and why—and hopefully stop the damage.

The on-demand economy has created new opportunities, but often those doing the actual work feel exploited. Advocates think technology can provide a better solution.

Developers will use every trick in the book to hook you.