This is my first attempt at writing for Eberron so bear with me;

The Khorvaire Courier

In the wake of the last war Houses Kundarak, Vadalis, Sivis and Orien banded together to form a company called the Khorvaire Courier.

In essence a newspaper controlled by its contributing houses the Courier holds a distinction over all other newspapers because of the nature of its patronage. Distribution. The Courier is created in mass quantities by House Sivis who move it into customised House Kundarak vaults which have been enchanted by House Orien to move their contents to identical Vaults in every major city on Khorvaire. From these depots the Courier is collected by the local agent of House Vadalis and delivered to its target audience by couriers on Magebred mounts.

The advantage here is that from the moment that the Courier is printed it can be in a city on the otherside of Khorvaire in seconds and delivered to the local populace within the hour. It also implies that the Courier has informants and information gatherers inevery major city on Khorvaire to keep the information relevant to all readers.