1. A method for time-multiplexing the display of a plurality of selected documents, comprising: determining time-multiplexing criteria for displaying a plurality of selected documents associated with a concept on a time-multiplexed basis, the time-multiplexing criteria based on at least one of a relevance of each of the selected documents to the concept, a cost per click, or a click through rate associated with each of the selected documents; and providing display data associated with the plurality of selected documents for presentation on a webpage at an output device according to the time-multiplexing criteria, wherein the time-multiplexing criteria determines a sequence of the selected documents and a time duration of display for each of the selected documents at the output device in the webpage, wherein the causing the display of the plurality of selected documents includes: providing display data associated with a first document for presentation in the webpage for a first time duration determined by the time-multiplexing criteria, wherein the first document is displayed at a first location in the webpage along with content associated with the concept; determining a lapse of the first time duration; and providing display data associated with a second different document replacing the first document in the webpage at the first location based on determining the lapse of the first time duration.