This happened to me, when Google expanded their list of products and services that can't be advertised on AdWords last summer. Google accounted for 40% of new c

This happened to me, when Google expanded their list of products and services that can't be advertised on AdWords last summer. Google accounted for 40% of new customers on one of my ecommerce sites and that disappeared overnight. It took half a year to build up and optimize other advertising channels, but now the site does fine in a world without Google.