Police in London have kicked off a new program where websites that happen to offer illegal content will see their banner ads replaced by what else, but stern police warnings. This means users will also be able to see such warnings, and should they heed those warnings and not visit such websites any more, the number of visitors will logically drop – and so will the advertising revenue in due time.
This particular system will make use of what they call Project Sunblock to pull it off. This particular program is currently being used by a handful of major retailers in order to ensure that their ads will remain free from association with less than desirable content that could cause damage to the brand.