Come to meet organizers and members of the Google Technology User Groups (GTUG) from all over the world. During the session you will have the possiblity to get to know GTUGs as well as the so called Google Technologies. After an overview of the existing Google APIs, the open source project on Java AppEngine for the site gtugs.org will be presented and you are invite to contribute your ideas and code to the project in a relaxed atmosphere. That could be an Android client, a chrome extension or a fancy HTML5 page. In the spirit of GTUG, the session will also be about sharing. We will show how to ask and answer good questions on StackOverflow and exercise with some open ones.