With the advent of cloud computing, more and more people are able to use Internet for a wide variety of services. Today, cloud computing service providers offer three service models namely SaaS (Software as a Service), PaaS (Platform as a Service) and IaaS (Infrastructure as a Service), which make lives of their consumers easier including that of criminals. Google is widely used SaaS service provider for searching, sharing, storing and editing data on the web. The services offered by Google range from text documents, spreadsheet, presentation, images, audio and video. Architecture of these services offers less scope for identifying forensically valuable artifact from client side to reconstruct the user activity.