Zoom's sudden popularity sets off scramble in rivals

Facebook, Google and other behemoths are training their sights on Silicon Valley's company of the moment

As people turned in droves to the video chatting app Zoom in recent weeks, the buzz caught Facebook’s attention. Inside the social network, that immediately set off a scramble.
 

Mark Zuckerberg, Facebook’s chief executive, ordered employees to ramp up and focus on the company’s own video chat projects, especially as use of its products also increased, said three people with knowledge of the plans, who declined to be identified because the details are confidential. On Facebook’s internal message boards, employees openly gawked at public data showing Zoom’s growing popularity, they said.
 

On Friday, Facebook unveiled one of its biggest expansions