What new business model has emerged from Web 2.0? Define social network. List some major social network sites. Define cloud computing. How does it relate to PaaS, SaaS, and IaaS? Give examples of...

What new business model has emerged from Web 2.0? Define social network. List some major social network sites. Define cloud computing. How does it relate to PaaS, SaaS, and IaaS? Give examples of companies offering cloud services. How does cloud computing affect business intelligence?