By premiumvirtue 2010-09-30 09:59:10
I dont know about other servers but one of the most popular places to list items is near Adventurers Guild, In Limsa its outside on the balcony, in Uldah its right next to repair guy across from chocobo and in Gridania its right outside the Adventurers Guild along the path.
I wonder if its like this on other servers as if i was to sell, i'd go to one of these spots.