Alex Sherman , Eric Newcomer , and Alex Barinka:

Buying Slack would help Seattle-based Amazon bolster its enterprise services as it seeks to compete with rivals like Microsoft Corp. and Alphabet Inc.’s Google. The company’s cloud-hosting unit, Amazon Web Services, in February unveiled a paid-for video and audio conferencing service — Amazon Chime — that lets users chat and share content.

I’m inclined to say it might even make for a better Slack, but I dunno.