Offline ads for direct response are easily measurable with tracking numbers. Branding ads - well - I have no clue how they track any of that - but then again ho

Offline ads for direct response are easily measurable with tracking numbers. Branding ads - well - I have no clue how they track any of that - but then again how do you track a CPM media buy just designed to increase brand awareness online... (note: I come from the DM world).