The search engines want users to find exactly what they're looking for, and advertisers to get site visitors whose intent, expressed as a search query, match exactly what's offered by the advertiser's site. That way, satisfied users return to the search engine for dependable search results, and advertisers can depend on a steady stream of clicks resulting in sales, which in turn keeps advertisers spending. Does your campaign suffer from a poor quality score? Find out how to tell and what you can do to improve it.