This volume includes extended versions of a selection of the best papers presented at the workshop Information Dynamics in Artificial Societies (IDAS) and its special track on Sociolinguistics and Network Games (SLANG), of the 26th European Summer School in Logic, Language and Information (ESSLLI), 2014. This workshop focused on information exchange between several artificial agents. More precisely, the workshop aimed at discussing formal theories showing: - how information circulates in an artificial society by direct interaction, communication or signaling ; - how it influences the individual cognitive attitudes (e.g. beliefs) and the collective attitudes (e.g. judgment) ; - how behavioral characteristics of information exchange (e.g. signaling conventions) emerge in repeated interactions. The papers presented at IDAS and SLANG gave a broad and diverse overview of ongoing research on these topics: the program included ongoing research about concurrent information change, normative change, social influence, merging, aggregation, signaling strategies and cellular games. The workshop chairs selected the best papers presented in these workshops. Authors were asked to submit extended and updated versions of their papers. These went through a second round of a thorough review process, resulting in the five articles included in this special issue.