Devices, systems, and methods for automatic real-time moderation of meetings, by a computerized or automated moderation unit able to manage, steer and guide the meeting in real-time and able to selectively generate and convey real-time differential notifications and advice to particular participants. A Meeting Moderator Bot monitors audio conversations in a meeting, and analyzes their textual equivalent; detects topics that were skipped or that should be discussed, and notifies participants; detects double-talk or interferences and generates warnings accordingly; detects absence of participants that are relevant to particular topics; detects that the conversation should shift to another topic on the agenda; generates other meeting steering notifications; and monitors compliance of the meeting participants with such steering notifications.