A method, system, and/or apparatus for automatically tracking a mobile user using the user's mobile device. This invention is particularly useful in the field of social media, such as for detecting and tracking the location and activity of a user and her community. The method or implementing software application uses or relies upon location information available on the mobile device from any source, such as cell phone usage and/or other device applications. The social media system automatically determines a location type and/or user activity from context information. The context information can include current and past location and user and/or community information, time-dependent information, and third party information. The location activities can be presented to the community using pictograms selected to represent user activities.