17. A computer-implemented method comprising: generating, with a computer processor, a shared topic feed that includes a set of topic inputs, wherein a subset of the topic inputs is authored by a first user, analyzing the topic inputs to identify a subject matter area of the set of topic inputs; distributing the shared topic feed to a set of followers that follow at least one of the first user or the subject matter area; identifying follower interaction indications indicative of one or more of the followers interacting with the set of topic inputs in the shared topic feed; based on the follower interaction indications: identifying a first number of follower interactions that directly interact with the subset of topic inputs authored by the first user, and identifying a second number of follower interactions that directly interact with one or more topic inputs, in the set of topic inputs, authored by another user that is different than the first user, determining that the first number of follower interactions exceeds the second number of follower interactions; based on the determination, identifying the first user as a person of interest for the subject matter area; and providing an output with the shared topic feed indicating the user as a person of interest for the subject matter area.
17. A computer-implemented method comprising: generating, with a computer processor, a shared topic feed that includes a set of topic inputs, wherein a subset of the topic inputs is authored by a first user, analyzing the topic inputs to identify a subject matter area of the set of topic inputs; distributing the shared topic feed to a set of followers that follow at least one of the first user or the subject matter area; identifying follower interaction indications indicative of one or more of the followers interacting with the set of topic inputs in the shared topic feed; based on the follower interaction indications: identifying a first number of follower interactions that directly interact with the subset of topic inputs authored by the first user, and identifying a second number of follower interactions that directly interact with one or more topic inputs, in the set of topic inputs, authored by another user that is different than the first user, determining that the first number of follower interactions exceeds the second number of follower interactions; based on the determination, identifying the first user as a person of interest for the subject matter area; and providing an output with the shared topic feed indicating the user as a person of interest for the subject matter area. 18. The computer-implemented method of claim 17 , wherein the topic inputs comprise at least one search result selected by the first user.