1. A method comprising: providing a user interface comprising an independent topic interface for each of a plurality of topics on one common page displayed to a user, wherein the user interface permits a user, for each of a plurality of independent topic interfaces, to: select a topic by one of a plurality of topic selection options comprising manually entering a topic and selecting a topic from suggested topics; select treatment of the selected topic from a plurality of topic treatment options comprising treatment as an individual topic and treatment as a refinement of or combination with another topic; select a topic interface to display the treated selected topic from a plurality of topic interface options comprising an existing topic interface on the common page and an additional topic interface on the common page; and browse content based on the selected topic displayed in the selected topic interface.