This document discusses how cloud integration can maximize the value of an Eloqua marketing automation platform. It provides two case studies of companies that used the Cast Iron cloud integration platform to integrate Eloqua with other systems. Siemens used it to integrate Eloqua with Salesforce and cleanse data. A second company used it to integrate Eloqua with Salesforce, an automated calling system, and create a holistic lead nurturing process. The document also discusses Cast Iron's approach to lead generation and nurturing campaigns.