Page is a not externally linkable
-- Domain Names
---- Just Invested $18,000 Acquiring a One Word, Industry Defining .Org Domain
phranque - 11:17 pm on Jul 18, 2013 (gmt 0)Thread source:: http://www.webmasterworld.com/domain_names/4592492.htm
one more thing - the reason it goes way down for 5 letters is simple combinatorics.
26**4 is less than half a million. (and only a small subset are dictionary words)
26**5 is almost 4% of all domains currently registered.
Brought to you by WebmasterWorld: http://www.webmasterworld.com