I started using Google Ads in the early days and could get loads of well targetted clicks for £0.05 to £0.10 each. Those days are over. The "law of shitty click

I started using Google Ads in the early days and could get loads of well targetted clicks for £0.05 to £0.10 each. Those days are over. The "law of shitty clickthrus" says that every advertising channel gets less profitable over time.