Google will start by cutting off its ad-selling software to sites promoting false information.

One report said an outpouring of sympathy directed at Clinton supporters could have caused the glitch.

The company is on pace to reach $27 billion in revenue this year.

A short campaign in September resulted in thousands now registered to vote.

Facebook is rolling out a new "Marketplace" feature in four countries.

Facebook's overestimation of a video metric upset several advertisers.

Facebook CEO Mark Zuckerberg and his wife Dr. Priscilla Chan will invest this money over a period of 10 years.

Why the social network is making it harder for ad blockers to work on its site

But the method comes with risks, says one professor.

Google and Facebook's strong earnings are powered by a surge in mobile advertising