Salesforce.com is the enterprise cloud computing leader. Their social and mobile cloud technologies, including our flagship sales and CRM applications, help companies connect with customers, partners, and employees in entirely new ways. Sales Cloud, Service Cloud, and Marketing Cloud share the same point which is collaborating with customer. However, they are different in some ways. The Sales Cloud puts everything you need at your fingertips, from social accounts and contacts to mobile, chatter, and analytics, collaboration across your global organization and getting deals done faster is not only possible, it's easy. But in Service Cloud, you can make your call center social and empower your customers with communities. Deliver service to your customers on the social media channels where they live. Give your agents tools for collaboration. Improve your contact center metrics. And deliver outstanding customer service to improve customer satisfaction and loyalty. Furthermore, regarding Marketing Cloud, you can listen at social scale. Tap into real-time conversations from more than 400 million social sources. Use social insights to make better business decisions in marketing, sales and service. Identify advocates and keep a finger on the pulse of your brand.