Black-Market Item Info
Id like to have almost the reverse opposite of on the TSM Black-Market site. Currently you pick a server to show the recently queried data from users.
It seems that with that user data you could easily implement a option to choose an item and see where it was last found price etc.
Premium users can search for items and view BMAH listings across all realms.
This would be a huge feature that i would even be willing to commission/donate for if possible. It seems possible as the data is already there, and would help all those T3 set collectors find servers that have their last item(s)