Machines, systems and methods for dynamic content filtering are provided. The method comprises receiving an indication for a preference for an approximate number of content to be delivered during an indicated time period; assigning a first score to the first content according to one or more factors, in response to receiving a first content at a first point in time during the first time period; delivering the first content, in response to determining that the first score is above a first dynamically calculated threshold, wherein the first dynamically calculated threshold is calculated based on: t: time of arrival of the first content, k(t): number of contents that has been delivered until the first point in time, K: the approximate number of events to be delivered during the indicated time period, and F: a distribution function calculated based on prior history of the content delivered.