1. A method for coupling drilling operational knowledge with an earth model in three-dimensional computer displays comprising: displaying a three-dimensional representation of an earth model of one or more wells, wherein at least one of the one or more wells is a planned well; and displaying one or more knowledge attachment symbols on the three-dimensional representation, wherein each knowledge attachment symbol is configured to display information associated with the knowledge attachment symbol and corresponding to one of the one or more wells in response to user input; wherein the information associated with at least one of the knowledge attachment symbols is planned drilling information for a corresponding planned well.