A method comprising: receiving, by one or more computing systems of a social networking system, an indication of a first user action performed by a first user of the social networking system, the performed user action comprising submitting a first post, the first post being viewable by the first user as well as other users of the social networking system; by the one or more computing systems, when the indication is received and without further instructions of the first user, in response to submitting the first post: determining, by the one or more computing systems, a topic of the first post based on analyzing content associated with the first user action; determining whether the first user has indicated in the system a preference to exclude posts associated with the topic; and in response to a determination that the first user has not indicated in the system any preference to exclude posts associated with the topic, then, without requiring additional input or further instructions by the first user: identifying, by the one or more computing systems, one or more second posts that relate to the first topic, each of the second posts submitted by other second users; determining whether the first user has indicated in the system a preference to exclude posts associated with the second user; and in response to a determination that the first user has not indicated any preference to exclude posts associated with the second user, providing the first user with access to the one or more of the second posts or sending to the first user a reference associated with the second posts, wherein the access or the reference is configured to enable the first user to interact with the one or more second posts. determining, by the one or more computing systems, a topic of the first post based on analyzing content associated with the first user action; determining whether the first user has indicated in the system a preference to exclude posts associated with the topic; and in response to a determination that the first user has not indicated in the system any preference to exclude posts associated with the topic, then, without requiring additional input or further instructions by the first user: identifying, by the one or more computing systems, one or more second posts that relate to the first topic, each of the second posts submitted by other second users; determining whether the first user has indicated in the system a preference to exclude posts associated with the second user; and identifying, by the one or more computing systems, one or more second posts that relate to the first topic, each of the second posts submitted by other second users; determining whether the first user has indicated in the system a preference to exclude posts associated with the second user; and in response to a determination that the first user has not indicated any preference to exclude posts associated with the second user, providing the first user with access to the one or more of the second posts or sending to the first user a reference associated with the second posts, wherein the access or the reference is configured to enable the first user to interact with the one or more second posts.