European financial leaders on Tuesday vowed vigilance after Facebook announced it was diving into the cryptocurrency market, as analysts warned the social media giant could face major regulatory questions.

An Instagram outage on Thursday left users of the Facebook-owned social network flocking to Twitter to vent frustration.

Facebook CEO Mark Zuckerberg did not knowingly violate an agreement with the regulator supervising the company's management of users' personal data, the social media giant said Wednesday as it addressed an issue that has been under federal investigation for the past year.

The U.S. Justice Department said Tuesday that it has arrested nearly 1,700 alleged online child sex offenders in a two-month operation across the country.

Facebook is building a massive solar farm in West Texas that's believed to be one of the largest solar projects in the nation and the social media giant's first direct investment in renewable energy.

Boston-based renewable energy developer Longroad Energy recently announced it was partnering with Facebook on the $416 million project, just as Facebook is finishing construction of a data center near Albuquerque.

US retail giant Amazon has moved past hi-tech titans Apple and Google to become the world's most valuable brand, a key survey showed Tuesday.

In the early days of Russia's internet, hippies founded the first telecoms venture with Americans, an astrophysicist ran the country's most visited website and providers punished hackers by kneecapping them with baseball bats.

The Chinese government convened top tech companies this week and warned them of consequences if they cut off technology sales to the country, U.S. media reported on Saturday.

U.S. President Donald Trump took to Twitter once again Sunday to accuse the messaging platform of gagging conservative voices -- a "Giant Mistake!" that he said runs counter to freedom of expression.

Russian President Vladimir Putin on Friday slammed U.S. moves against Chinese tech giant Huawei, which has signed a deal to develop a 5G network in Russia.