This document discusses how remarketing can boost PPC conversions. It explains that remarketing allows a second chance to gain conversions from visitors who were not converted on their first site visit. Typical website conversion rates are low, at 0.5-10%, meaning up to 99.5% of visits are wasted. The document then describes how remarketing works by tagging the site, identifying visitors via cookies to build an audience, and then re-advertising to that audience on other sites. However, it notes that remarketing messages need to provide value rather than just saying "Buy Now". It provides several examples of how remarketing can be used more cleverly, such as targeting different types of visitors.