Hi
Salesforce marketing cloud helps businesses to grow by making a brand through latest automated marketing practices.
It involves:
- Email marketing
- Social Media Marketing(Facebook, Twitter, and LinkedIn Ads platform)
- Mobile messaging
- Content marketing
- Data mining and analysis and reporting
For overview of marketing cloud can be get from the follwoing link
http://www.salesforce.com/in/marketing-cloud/overview/
Hope it helps
Happy coding 🙂