Six years ago, "unicorn" became the name for startup tech companies valued at $1 billion or more. At the time, only 39 companies had earned the title. Since then, the club has grown to 484 members.

Battered by a drop in sales and profits, Nissan plans cuts around the world — including more than 1,400 jobs in the United States. It's the latest sign of tumultuous times for the car industry.

A Senate panel is looking to see if the company is keeping conservative media and bloggers out of top search results. Google has previously denied political bias.

Amazon plans to invest $700 million to train a third of its U.S. workforce for higher-skilled jobs. The company acknowledged that workers could use their new skills to seek jobs outside Amazon.

Instagram is rolling out a feature that will notify users when their comments may contain harmful or offensive content, then give them the opportunity to undo the posts before other users see them.

Walmart is expanding a program for food stamp recipients to buy groceries online and pick them up in stores. It's the latest move to give them more options in the era of online shopping.

The pool of smaller, affordable starter houses is low. And the market for these first-time home purchases is increasingly being driven by investors who help push prices out of reach.

Slack has grown to more than 10 million users and has become a verb in the process. "I'll Slack you" is shorthand for sending a message via the chat platform. Its stock soared in its public debut.

More than 600 companies — such as retail giants like Walmart, Target, Macy's and Gap — and trade groups fear tariffs will lead to job loss and will harm both consumers and the U.S. economy.

The push to increase regulations on tech companies may be warranted, said Dara Khosrowshahi, chief of the ride-hailing service. His comments come as lawmakers and regulators focus on the industry.

With a tight labor market, Walmart and other companies are adding new kinds of benefits to attract workers. Now, the giant retailer is offering to pay for prep courses for the SAT and ACT.

Fewer Chinese tourists have been visiting Hawaii, Arizona and other population destinations in recent years. The strong dollar has made travel more expensive, just as political tensions have grown.