Ad Rank, a value that Google AdWords uses to determine an ad’s position in the Search Engine Result Pages (SERPs) officially changed a few months ago. As a result, Google appears to be placing more importance on ad extensions.
As Google puts it, “if two competing ads have the same bid and quality, then the ad with the more positive expected impact from extensions will generally appear in a higher position than the other.” In other words, ad extensions have gone from just another AdWords feature to a “must-do” for anyone running paid search campaigns – especially when the competition is fierce.