Salesforce Marketing Cloud is a customer relationship management (CRM) platform for marketers that allows them to create and manage marketing relationships and campaigns with customers.
The Marketing Cloud incorporates integrated solutions for customer journey management, email, mobile, social media, web personalization, advertising, content creation, content management and data analysis.The software includes predictive analytics to help make decisions such as, for example, what channel would be preferable for a given message. A component called Journey Builder helps marketers tailor campaigns to customers' behavior and needs, demographics and communication channel preferences.
Event-driven triggers initiate actions: When a customer joins a loyalty program, Marketing Cloud might be triggered to send a welcome message; other events could trigger data updates in the customer contact record. The Marketing Cloud is connected to Salesforce.com's Sales Cloud and Service Cloud, which enables coordination that provides a unified experience and prevents customers from being contacted separately by marketers from all three groups.
See a brief introduction to Marketing Cloud: