Life360 is a family networking app with that family members can share the location and track realtime. When my kids go on a trip, I can track them and plan to pick them up by knowing their current location, and how long it'll take to come to the pickup point. Other benefits are it also shows the remaining battery life in family members cell phones and available for all the mobile platforms (iOS, Android, Windows Mobile). You can also get directions to the current location of a family member, since Life360 integrates with Google Maps and passes the coordinates.