How Adwords works: Calculating quality score & Page rank
The three best shopping streets in the world are Fifth Avenue in New York, Bond Street in London, and Avenue Montaigne in Paris. You are probably wondering what this has got to do with learning how Google Adwords works, but there is a connection.
The best shopping streets in the world do not have liquor stores, 99-cent stores or fast-food outlets. If businesses like this opened on any of these streets they would quickly lose their reputation as being the best. This would happen even if the lower-end shops paid two or three times the rent of the luxury brands and designer boutiques.