A system, method, and computer-readable media for surfacing relevant topics discussed in a synchronous multimedia collaboration session to interested non-participants of the synchronous multimedia collaboration session. A relevant topic of the synchronous multimedia collaboration session may be determined based in part on audio data from the synchronous multimedia collaboration session. At least one non-participating member with an interest in the relevant topic of the synchronous multimedia collaboration session may be identified. A notification of the synchronous multimedia collaboration session associated with the relevant topic may be surfaced to the at least one non-participating member.