8. A mobile device for sharing information, comprising: a memory component for storing data; and a processing component for executing data that enables actions, comprising: creating a membership group to a spontaneous event of a gathering of people in a physical location; sharing, during the event, at least one of media content or text message to at least one other mobile device associated with a member of the group, wherein sharing or the media content further comprises enabling automatic posting of the media content to a website associated with the event independent of further actions by the mobile device; enabling a determination of an initial start time or an end time of the spontaneous event based on the sharing of the at least one media content or text message; and determining a revised start time as when a rate of sharing of messages exceeds a threshold during the spontaneous event, wherein the sharing of messages includes messages received from one member of the group that are distributed to other members of the group.
8. A mobile device for sharing information, comprising: a memory component for storing data; and a processing component for executing data that enables actions, comprising: creating a membership group to a spontaneous event of a gathering of people in a physical location; sharing, during the event, at least one of media content or text message to at least one other mobile device associated with a member of the group, wherein sharing or the media content further comprises enabling automatic posting of the media content to a website associated with the event independent of further actions by the mobile device; enabling a determination of an initial start time or an end time of the spontaneous event based on the sharing of the at least one media content or text message; and determining a revised start time as when a rate of sharing of messages exceeds a threshold during the spontaneous event, wherein the sharing of messages includes messages received from one member of the group that are distributed to other members of the group. 13. The mobile device of claim 8 , wherein sharing the media content further comprises automatically annotating the media content based at least in part on a physical location of the mobile device, a time, an identity of member of the group.