Slack founder Stewart Butterfield takes a selfie outside the New York Stock Exchange as the firm's shares begin trading Shares in messaging ... market. Slack set a guide price of $26 a share ...

OpenAI said on Tuesday it will develop artificial intelligence products for South Korea with chat app operator Kakao , ...

Here's another reason to use Facebook at work. The social media giant launches "Facebook at Work" on Monday, a new business-messaging tool that will represent the first time it charges for its ...

Kakao operates South Korea's dominant messaging app KakaoTalk, which has a whopping 97% domestic market share and has ...