Google took down 2.3 billion “bad ads” in 2018, according to its annual report on actions it took to address policy violations on its ad platforms. That’s about a million fewer ads than it removed in 2017. However, the ad giant said the number of advertiser accounts it terminated last year nearly doubled from the previous year to nearly one million. Sectors targeted for clean up. For-profit bail bond services, addiction treatment services, third-party tech support, ticket resellers, cryptocurrency and some local services such as garage door repair topped the list of sectors Google focused on in 2018. It banned