They were the hottest names in tech. Brands like Warby Parker, Stitch Fix, FIGS and Allbirds pioneered a new form of retail, one that went "direct to consumer" — via the internet — instead of selling through established outlets. They appeared unstoppable. But today, they're crashing hard with no bottom in sight.

On Friday, the company revealed the expansion of pre-roll ads, a format once banned by CEO Mark Zuckerberg himself,

Facebook Inc. reached a deal with Major League Baseball for exclusive rights to stream 25 afternoon games on the social network in the U.S.