This document discusses how to optimize Google AdWords campaigns through proper account structure and management of keywords and queries. It recommends using an "Alpha-Beta" process where a "Beta" campaign uses broad match modified keywords to identify profitable queries, which are then isolated on exact match in "Alpha" campaigns to control bidding and ads. Through this process of identifying winners and losers and refining match types and negatives, advertisers can improve their Lin-Rodnitzky ratio, which measures the ratio of total queries to converting queries as an indicator of campaign efficiency. Proper account hierarchy and management of match types, negatives and queries is key to maximizing profits from AdWords campaigns.