The document discusses using personalized URLs (PURLs) in direct mail campaigns to boost response rates. PURLs allow each direct mail recipient to have their own unique web address. When recipients visit their PURL, it takes them to a personalized landing page that continues the conversation. Survey questions can then be used to collect leads and distribute them immediately to sales teams. A case study example showed a university campaign that used PURLs saw a 2x increase in response rates over traditional methods.