25. A computer-readable medium containing instructions executable by one or more devices, comprising: one or more instructions to identify comments associated with a particular document; one or more instructions to generate objective scores for the comments, where the objective scores are independent of users; one or more instructions to identify a user accessing the particular document; one or more instructions to generate subjective scores for the comments based on the identified user and based on authors of the comments; one or more instructions to combine the objective scores and the subjective scores; and one or more instruction to provide the comments, ranked based on the combined scores, to the user for presentation in connection with the particular document.
25. A computer-readable medium containing instructions executable by one or more devices, comprising: one or more instructions to identify comments associated with a particular document; one or more instructions to generate objective scores for the comments, where the objective scores are independent of users; one or more instructions to identify a user accessing the particular document; one or more instructions to generate subjective scores for the comments based on the identified user and based on authors of the comments; one or more instructions to combine the objective scores and the subjective scores; and one or more instruction to provide the comments, ranked based on the combined scores, to the user for presentation in connection with the particular document. 26. The computer-readable medium of claim 25 , where an objective score for a particular one of the comments is based on objective ranking parameters that include at least one of: a measure of relevance of the particular comment to the particular document, a linking structure of the particular comment, a reputation of an author of the particular comment, a rating of the particular comment, a timestamp of the particular comment, a length of the particular comment, and a spelling and grammar score of the particular comment.