14. The system of claim 13 wherein the feed generator is configured to receive, from a given recipient, a recipient-actuation of the link to the query, from the topic feed and, in response, generate an updated topic feed including an indication that the given recipient has actuated the link to the query.
14. The system of claim 13 wherein the feed generator is configured to receive, from a given recipient, a recipient-actuation of the link to the query, from the topic feed and, in response, generate an updated topic feed including an indication that the given recipient has actuated the link to the query. 15. The system of claim 14 wherein the feed distributor is configured to distribute the updated topic feed to identified recipients of the updated topic feed.