To the untrained eye, the graph looked like a very volatile day on Wall Street — jagged peaks and valleys in red, blue and green, displayed on a wall. But the story it told was not about economics.

It was a glimpse into the brains of Shaul Yahil and Shaw Bronner, two researchers at a Yale University lab, as they had a little chat.

Warnings are appearing on Instagram accounts in North Korea that claim access to the popular photo-sharing app is being denied and the site blacklisted for harmful content.

Opening the app with mobile devices on the North Korean carrier Koryolink has resulted in a notification in English saying: "Warning! You can't connect to this website because it's in blacklist site." A similar notice in Korean says the site contains harmful content, though that is not mentioned in the English version.

Admiring paintings or photographs by Africa's greatest contemporary artists is a luxury in Benin, where museums are scarce and most people lack money to travel farther afield.

But a new application developed by a foundation based in Cotonou, the largest city in this West African state, is seeking to bring art to the masses by allowing anyone with access to a printer and smartphone or tablet to turn their place into a museum.

Google said Friday it was taking steps to remove from search results "revenge porn," or sexually explicit images of people posted without their consent.

The Internet search giant said it would soon put up an online form that will allow victims to make requests to remove these items from Google search queries.

Twitter said Friday it was testing a new way to use the messaging platform for shopping by promoting "products and places" in its feeds, as it looks to boost revenues.

"We're starting to experiment with a small number of products and places," Twitter product manager Amaryllis Fox said in an official blog post.

It seems the Electronic Entertainment Expo is no longer a man's world.

During this year's video game extravaganza, a variety of women — virtual and otherwise — have been featured more prominently than in past years of the annual trade show where game makers highlight their forthcoming creations. In presentations and on the expo floor, a sizeable number of women have appeared on stages, within games and in crowds.

YouTube announced plans Thursday for a "newswire" of eyewitness videos and a separate project on videos related to social justice and human rights.

In partnership with the social news group Storyful, the YouTube Newswire will be "a curated feed of the most newsworthy eyewitness videos of the day, which have been verified by Storyful's team of editors," a blog post from the Google-owned video sharing service said.

Cuba announced plans Thursday to open 35 public wifi hotspots and halve the price to go online, seeking to expand Internet access in one of the world's least-connected countries.

State telecoms firm Etecsa said the hotspots, a first for the communist island, would be set up nationwide and begin service in July.

Zach Jaffe wants to players to be so immersed in action games that they feel each blast vibrate through their very being.

He was at the premier Electronic Entertainment Expo video game show in Los Angeles offering a new way to make that happen.

Warner Bros. this week showed off Lego Dimensions, its latest videogame that mixes real-life toy play with digital gaming. 

Unveiled at the Electronic Entertainment Expo (E3) trade gathering in Los Angeles, the new game comprises Lego figurines from a range of film franchises including "Batman" and "Back to the Future."