Provided are systems and methods for segmenting and grouping a plurality of network nodes into one or more clusters. Content may be delivered from a transmitting user node to a receiving user node based on which cluster the receiving user node resides. The grouping of the clusters may be dynamically updated in real-time based on user activity data. Such user activity data may be collected from both a transmitting user node (e.g., server) and a receiving user node (e.g., user device) to map the delivery of a relevant communication. Advantageously, a transmitting user may deliver content to other relevant users and a receiving user may receive content from other relevant users.