If your site serves the same content on
http://chrisnewland.com/mypage
http://www.chrisnewland.com/mypage
http://www.chrisnewland.com/mypage
then search engines will see them as two different pages.
Correct that with the following mod_rewrite rules in your Apache web server configuration.
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.chrisnewland\.com [NC]
RewriteRule ^(.*)$ http://www.chrisnewland.com/$1 [L,R=301]
RewriteCond %{HTTP_HOST} !^www\.chrisnewland\.com [NC]
RewriteRule ^(.*)$ http://www.chrisnewland.com/$1 [L,R=301]