29. The method of claim 20 , further comprising: receiving data defining an active tag and a first argument for the active tag; receiving data identifying the active tag to be associated with the second discussion data structure; associating the active tag data with the second discussion data structure; and including the active tag data in the first visual feed data for display.
29. The method of claim 20 , further comprising: receiving data defining an active tag and a first argument for the active tag; receiving data identifying the active tag to be associated with the second discussion data structure; associating the active tag data with the second discussion data structure; and including the active tag data in the first visual feed data for display. 30. The method of claim 29 , further comprising: displaying on a visual display and in association with the first sub-discussion topic an active button or active text representative of the active tag; receiving an indication that the active button or active text has been selected; and performing, responsive to receiving the indication, a functional operation associated with the active tag.