1. A method comprising: determining that a first person of an organization is within a physical proximity to a second person of the organization based on a communication received from a mobile device of the first person and a communication received from a mobile device of the second person; identifying a discussion topic from a plurality of discussion topics stored in a database of a networked system based on an aggregate relevancy score associated with the discussion topic transgressing a relevancy threshold, the aggregate relevancy score representing an aggregation of a first relevancy score, a second relevancy score, and a third relevancy score, the first relevancy score representing a relevancy of the discussion topic to the first person, the second relevancy score representing a relevancy of the discussion topic to the second person, and the third relevancy score representing an importance of the discussion topic to the organization, the importance of the discussion topic to the organization based at least in part on completion data pertaining to tasks associated with a project of the organization that is relevant to the discussion topic; and notifying at least one of the first person and the second person of the identifying of the discussion topic while the first person is within the physical proximity to the second person, the notifying including sending a communication for presentation in at least one of a user interface of the mobile device of the first person and a user interface of the mobile device of the second person, the communication including information pertaining to the discussion topic, one or more modules incorporated into the networked system to configure one or more processors of the networked system to perform the determining, identifying, and notifying.