Digital Marketing News: Google AMP’s ROI Rise, Digital Ad Spend Now Dominant, & New B2B Marketing Studies The post Digital Marketing News: Google AMP’s ROI Rise, Digital Ad Spend Now Dominant, & New B2B Marketing Studies appeared first on Online Marketing Blog – TopRank®. The post Digital Marketing News: Google AMP’s ROI Rise, Digital Ad Spend Now Dominant, & New B2B Marketing Studies appeared first on Online Marketing Blog – TopRank®.