Google is buying JetPac Inc, a startup that designs social travel applications. "We'll be removing Jetpac's apps from the App Store in the coming days, and ending support for them on 9/15," stated a Friday posting on JetPac's homepage.

JetPac has created a mobile application that uses pictures from various social networking sites to create city guides.

Earlier this year, Google bought Nest Labs Inc, which makes smart thermostat and smoke alarms, for $3.2 billion.