Amazon's ad business is spiking, but ad buyers say the coronavirus reveals the commerce giant's weaknesses versus Google and Facebook

· *Amazon's ad business took less of a hit than Facebook and Google in the first quarter of 2020 due to the coronavirus because of the e-commerce giant's ties with direct-response advertisers that sell products on its platform.*
· *Yet some ad buyers say that the pandemic has shown how far Amazon's ad business lags Facebook...