I recently read this page https://support.google.com/webmaster...n&answer=44231 that generally recommends switching your settings in Google Webmaster Tools to have a preferred domain of either the www or non-www version of your site. I think the idea is that your site will do better if inbound links are not spread between "www.domain.com" and just "domain.com." However, I already have a 301 redirect in my .htaccess...so would choosing a preferred domain in Google still be necessary?