Dungeons And Dragons Online: WotC News: Dragonshards -- House Phiarlan, Part One

No world would be complete without a conspiracy theory or two, but what happens when there really are espionage networks?

The first and most important thing to know about House Phiarlan is that most of the people of Khorvaire have no idea that the house is engaged in espionage work. The role of entertainer is not simply a cover. It is a tradition that dates back tens of thousands of years, and for many members of the houses, it is the only trade that they follow.

If you're interesting in the history of this Elvish house, or the history of Eberron in general, you should check out the article here. It's a good read.