13. Non-transitory computer-readable media having instructions encoded thereon that, when executed by a processing unit, cause a computing device to: present a work to a plurality of readers following receipt of the work from an author; receive comments on the work from a plurality of contributors, the comments comprising feedback on the work for the author; analyze text within the comments and characterize the comments as positive or negative using natural language processing that associates a word in a comment of the comments with the comment being positive or negative; calculate, using an algorithm, a success metric for the work based at least in part on characterizations of the comments from the contributors as positive or negative, wherein the success metric increases as a number of comments characterized as positive increases and is indicative of a likelihood that the work will be popular with the plurality of readers; record, in an author activity log, one or more events comprising at least one of posting of a new portion of the work, modifying the work, removing a portion of the work, reading a comment about the work, or posting a status message; and calculate a draft completion metric representing a likelihood that the author will complete a final draft of the work, the draft completion metric based at least in part on the author activity log.
13. Non-transitory computer-readable media having instructions encoded thereon that, when executed by a processing unit, cause a computing device to: present a work to a plurality of readers following receipt of the work from an author; receive comments on the work from a plurality of contributors, the comments comprising feedback on the work for the author; analyze text within the comments and characterize the comments as positive or negative using natural language processing that associates a word in a comment of the comments with the comment being positive or negative; calculate, using an algorithm, a success metric for the work based at least in part on characterizations of the comments from the contributors as positive or negative, wherein the success metric increases as a number of comments characterized as positive increases and is indicative of a likelihood that the work will be popular with the plurality of readers; record, in an author activity log, one or more events comprising at least one of posting of a new portion of the work, modifying the work, removing a portion of the work, reading a comment about the work, or posting a status message; and calculate a draft completion metric representing a likelihood that the author will complete a final draft of the work, the draft completion metric based at least in part on the author activity log. 18. The non-transitory computer-readable media of claim 13 , wherein the computing device is further caused to: track interactions of the plurality of readers with the work; and calculate the success metric for the work based at least in part on the interactions of the plurality of readers.