A system may identify a comment that includes a number of links, each of the links points to a corresponding document; identify one or more factors associated with each of the links, the one or more factors including at least one of: a click through rate associated with the links, explicit user feedback regarding the links, a length of an address associated with the links, a measure of popularity associated with the document corresponding to the links, or a comparison of a topic associated with the comment and a topic associated with the document corresponding to the links; assign a score to the links based on the one or more factors; select one of the links based on the assigned scores; and provide information regarding the comment to a client device for presentation in connection with presentation of the document corresponding to the selected link.