1. A method of tracking change in status of a parcel data source for a parcel of land, comprising: storing, by a computer system, a status of the parcel data source linked with parcel data, the status of the parcel data source including information indicating at least one of an availability, a quality, and a type of media; receiving an indication of a change in the status of the parcel data source; automatically assigning with a tracking application a workflow assignment to evaluate whether to update the parcel data based on the change in the status of the parcel data source.