Facebook researchers manipulated newsfeeds of nearly 700,000 users to study "emotional contagion." iStockPhoto hide caption

All Tech Considered
Tech, Culture and ConnectionSocial Web
Monday
Friday
The Supreme Court will look at a case in its upcoming session dealing with what constitutes a "true threat" on Facebook. iStockphoto hide caption
Is A Threat On Facebook Real? Supreme Court Will Weigh In
Thursday
Stageit and another startup, Concert Window, have made it easy to play online shows — and make money doing it. Stageit.com hide caption
Your Favorite Musicians, Straight From Their Laptop To Yours
Thursday
Facebook says that starting soon, ad targeting will "include information from some of the websites and apps you use," making ads more relevant to users' interests. iStockphoto hide caption
Friday
"People are grappling with identity when they become parents, and they're also grappling with identity in terms of who we are online," says psychologist Daphne de Marneffe (not pictured). Jonathan Ross/iStockphoto hide caption
What Those Baby Photos On Social Media Can Teach Us About Moms
Monday
Pinterest users helped police in Redwood City, Calif., reunite stolen property with its owners. Pinterest hide caption
Sunday
Evan Spiegel is the CEO of Snapchat. The company recently introduced a new chatting feature in the app, which deletes message seconds after they are viewed. Jae C. Hong/AP hide caption
Wednesday
Twitter CEO Dick Costolo says the company has to bridge the gap between the brand's global awareness and user engagement. Ethan Miller/Getty Images hide caption
Twitter CEO Hopes To Attract Users By Clearing The Clutter
Friday
Mozilla co-founder Brendan Eich in 2010. Drew McLellan/Flickr hide caption
It's Complicated: When A CEO's Personal Position Becomes Public
Sunday
It would take more than 1,000 1,200-page volumes to contain the content of Wikipedia, but PediaPress has made an example volume to show what it might look like. "Our goal is to allow everyone to explore the physical dimensions of Wikipedia," says PediaPress founder Christoph Kepper. PediaPress hide caption
Printing Wikipedia Would Take 1 Million Pages, But That's Sort Of The Point
Friday
A woman looks at her smartphone as she walks by a banner of Turkish prime minister Recep Tayyip Erdogan, in Istanbul on March 21. On Thursday, Turkish court orders banned Internet users from accessing Twitter, but the social media company posted instructions on how to tweet from a phone. Ozan Kose/AFP/Getty Images hide caption
Wednesday
In the NASCAR Fan and Media Engagement Center, 13 46-inch TV screens display charts, tweets and live races. Michael Tomsic/WFAE hide caption
For Pro Sports, Public Relations Going High-Tech, Real Time
Tuesday
The fastest-growing part of the online dating market is people over 50, according the CEO of the Match Group. Carmen Winant/Getty Images hide caption
Thursday
Facebook announced it acquired WhatsApp late Wednesday. Justin Sullivan/Getty Images hide caption