I don't have much data yet, but on our B2B news sites it appears to be in the 4% to 9% range depending on the industry. I don't think ad blocking specifically

I don't have much data yet, but on our B2B news sites it appears to be in the 4% to 9% range depending on the industry. I don't think ad blocking specifically is behind the trend away from leaderboards and towards "native content" advertising, but it's only going to accelerate it.