6. A system for providing feedback on discrete segments of an individual work, the system comprising: a data store configured to store feedback data associated with discrete segments of the individual work; and one or more computer systems in communication with the data store, wherein the one or more computer systems are configured to: obtain segment specific feedback for alternative discrete segments of a portion of the individual work, the alternative discrete segments being different versions of the portion of the individual work; store feedback data for each of the alternative discrete segments in the data store; calculate a feedback score for each of the alternative discrete segments of the work based at least in part on at least one commentator reputation score associated with a commentator; provide a user with access to the calculated feedback scores for at least one of the alternative discrete segments; and obtain segment specific feedback for discrete segments of the individual work, wherein the discrete segments of the individual work have a different granularity.
6. A system for providing feedback on discrete segments of an individual work, the system comprising: a data store configured to store feedback data associated with discrete segments of the individual work; and one or more computer systems in communication with the data store, wherein the one or more computer systems are configured to: obtain segment specific feedback for alternative discrete segments of a portion of the individual work, the alternative discrete segments being different versions of the portion of the individual work; store feedback data for each of the alternative discrete segments in the data store; calculate a feedback score for each of the alternative discrete segments of the work based at least in part on at least one commentator reputation score associated with a commentator; provide a user with access to the calculated feedback scores for at least one of the alternative discrete segments; and obtain segment specific feedback for discrete segments of the individual work, wherein the discrete segments of the individual work have a different granularity. 13. The system of claim 6 , wherein the one or more computer systems are further configured to cause presentation of a comparison of the calculated feedback scores associated with different alternative discrete segments of the alternative discrete segments of the individual work to the user.