1. A system for prioritizing online comments on social network web page, the system comprising: a processor; a memory coupled to the processor; the processor is configured to run a social network application associated with a graphical user interface of a user computer that presents a content, wherein an application is integrated with the social network application, the processor is further configured to run the integrated application to: detect an activity of each user of a plurality of users consuming the content presented on the social network web page of the graphical user interface associated with the social network application, determine, based on the detected activity, time spent by said each user of the plurality of users consuming the content on the social network web page, wherein the determining time spent by the user consuming the content, comprises: for content that is consumed by the user is not integrated with the social network web page, determining a difference in time between the user linking to the content from the social network web page and the user returning to the social network web page, store the determined time spent for said each user of the plurality of users in a data structure of the memory to normalize the time spent by said each user of the plurality of users based on past viewing behaviors of the user on the content, index the determined times spent by the plurality of users consuming the content, responsive to the user entering a comment on the content via a network, determine a depth of consumption of the content by the user based on the determined time spent by the user consuming the content, wherein the determining the depth of consumption of the content comprises: identifying the time spent by the user in consuming a section of the content, wherein the identifying the time spent by the user in consuming the section of the content comprises comparing a determined section of the content with viewing time spent entries by the sections that are indexed; change a promotion of posts generated by the user to other users of the social network web page based on the determined depth of consumption; rank the comment entered by the user among a plurality of comments entered by one or more of the plurality of users based on the depth of consumption, and present the comment entered by the user and the plurality of comments entered by the plurality of users on the graphical user interface in the order of the ranking to prioritize comments entered by users who spent more time to consume the content by comparing times spent of the users who spent more time with the times spent by the rest of the users that consumed the content, wherein feedback on the content is rendered on the social network web page according to the prioritized comments.
2. The system of claim 1 , wherein the time spent by the user consuming the content is stored in a data structure comprising viewing time entries by sections of the content.