Can Facebook weather the ad boycott?

On Wednesday, more than 500 companies officially kicked off an advertising boycott intended to pressure Facebook into taking a stronger stand against hate speech. CEO Mark Zuckerberg has agreed to meet with its organizers early next week.

But whether Zuckerberg agrees to further tighten the social network’s carefully crafted rules probably boils down to a more fundamental question: Does Facebook need big brand advertisers more than the brands need Facebook?