In rural Uganda, "radio is everything," as one journalist puts it. So the U.N., hoping to hear more rural voices, used a tiny amount of data to build speech recognition software for new languages.
The kids look so darned cute in that photo, it's hard not to post it online for all to see. But there are privacy risks to sharing children's images, and children often don't want the exposure.
Data analytics firms that analyze vast amounts of public social media are a tool for law enforcement. But there are signs that Twitter, Facebook and others are shutting off access to that data.
Has the social media site been good for our mental health or not? The evidence isn't straightforward, researchers say, despite lots of study. How Facebook makes you feel may depend on how you use it.
As police find themselves in encounters that are posted live — including video — they sometimes want to pull the social media plug. Activists say this threatens to censor an electronic witness.
Researchers analyzed people's photo galleries on Instagram, then asked about their mental health. People who favored darker, grayer photos and filters were more likely to be depressed.