Helpful introductory articles on timely information dissemination in large scale gossip networks:

• Age of Information in Gossip Networks: A Friendly Introduction and Literature Survey

Priyanka Kaswan, Purbesh Mitra, Arunabh Srivastava, Sennur Ulukus

• Timeliness: A New Design Metric and a New Attack Surface

Priyanka Kaswan, Sennur Ulukus