Hers eomething of interest I found: http://photomatt.net/2006/06/13/wordpress-no-www/ Here is a snippet from a poster on that site as to why: Heh, DreamHost has a neat little util in the panel that lets you do exactly that. I’m proud to say I’ve been no-www for quite some time now! Good idea to write a plugin though. I don’t think people realize how much of a hit they take in search engine ranking when they allow both www and no-www. Check out digg’s ranking vs. slashdot on http://populicio.us/fulltotal.html. Digg’s combined numbers easily beat out slashdot, but because its numbers are split due to www and no-www, it sits at 6th and 11th. More info: http://no-www.org/