The rapid growth in the internet technology and infrastructure has improved the way to develop and access the application. Cloud computing offers many benefits to organizations. It is very popular and IT giants as Google, Amazon, Microsoft, and IBM have started cloud computing infrastructure. Also, many applications are moving to the interactive web-based development. Cloud computing setting provides a good flexibility and availability of computing resources at a lower price. This emerging technology opens a brand new era of e-services in numerous disciplines. This Paper explores cloud computing services and applications with examples of cloud services) like Amazon EC2, Salesforce.com, GoGrid and also gives innovative applications for cloud computing in education, research, and healthcare.