Hideo Joho and I are working as the evaluation co-chairs of NTCIR-9.
Also, I am one of the task organisers of INTENT and One Click Access (1CLICK) which is officially a subtask of INTENT but actually more like a separate task.
INTENT Subtasks: Subtopic Mining - given a query, list up possible intents; Document Ranking - selectively diversify search results to cover different intents 1CLICK - return a fixed length text that immediately satisfies the user
We have started distributing the first call for participation for INTENT and 1CLICK. Please visit the above pages and consider participating.