If Account-Level Quality Score Doesn’t Exist, Can It Really Hurt Your AdWords Program?

by Mark Ballard
While most search marketers will agree that AdWords Quality Score (QS) primarily reflects how a keyword's click-through rate (CTR) is expected to compare to its competition under the same circumstances, Google has left enough ambiguity in the finer points of Quality Score that it continues to be a rich area for research and debate.Read the full article