This article is described how to use Google data APIs to read your Google Calendar using C#. It will allow developers to write application which interacts with Google services that will have number of services such as Calendar, Google Documents, and Contacts...Etc. Synchronization, import, and export of calendars are possible by using APIs.By using Google Calendar service, you can create new events, edit or delete existing events and query for events that match particular criteria. Note: This article is described only about the Google Calendar Service. But in the same manner you will be able to use other services which Google has provided. Please get the source code for more information. Read more: Codeproject