Of all the display ads Google serves, more than half (56.1%) of all ad impressions are not “viewable” by consumers, according to new research from the search giant. Also, “Certain ad
sizes have a higher tendency to be viewable than others,” The Wall Street Journal reports, citing Google’s findings. “Unsurprisingly, the most viewable ad units were vertical ones,
because they’re likely to remain on users’ screens for longer than horizontal ones as users scroll vertically down Web pages.”
Read the whole story at The Wall Street Journal »
