1. A method for conveying information relating to objects among a plurality of users of a plurality of computing devices associated with user identification codes, including a first user identification code and a second user identification code and a third user identification code, the method comprising: receiving a zone information from a computing device associated with the first user identification code, the zone information relating to a zone having at least one coordinate within a coordinate system; associating an object location event information with the zone information, the object location event information being defined in terms of a condition based upon a relationship between the zone and a location of a moving object associated with the second user identification code, the second identification code being different from the first user identification code, each location of the object having corresponding object location information; associating an access code with at least one of the object location information, the zone information, or the object location event information, wherein the access code is based on the third user identification code, and wherein the third user identification code is different from the first and second user identification codes; and conveying at least one of the object location information, the zone information, or the object location event information to a computing device associated with the third user identification code based on said information access code.