namepros.com — There are 26^4 or 456 976 possible combinations of 4 english alphabet letters.In domain industry often the shorter is the better.And so today 2nd of November 2007 is the day all of these domains were registered!On of the best domain industry forums www.namepros.com has a great dicussion about it with more than 2,500 replies and 60,000 views.
Nov 2, 2007 View in Crawl 4
ssamrigaNov 2, 2007Submitter
I think this is really one of the great moments in domain history!
mewiiNov 3, 2007
Finally! The day came!
dannbkkJan 14, 2008
Yes, the day has come! There is a nice portfolio here of www.4ldomain.com. Also take a look here for an interesting read <a class="user" href="http://www.danlew.com/4-letter-domains/2007/12/30/">http://www.danlew.com/4-letter-domains/2007/12/30/</a>