http://www.yafla.com/dforbes/2006/03/29.html
4-letter .com約有80%已被註冊,還有20%可以挖寶
而5-letter還有一大脫拉庫
4-letter .com
1st May 2006 => 18.7% 85650 (18.7%未註冊, 85650個)
8th May 2006 => 18.5% 84560
15th May 2006 => 17.9% 81710
22nd May 2006 => 17.4% 79742
29th May 2006 => 16.6% 75869
5th June 2006 => 17.6% 80301