If you are serious abt the your Search Engine Rankings of your Joomla website, then the first thing to check is ,if your website has Search Engine Friendly URLs or not. And now a days, the search engines, dont like non www URLs and if, your website has non www URLs, then you are missing a big opportunity straight away. Earlier, you may have come across many such htaccess tricks or mod rewrite techniques, but this time, Im going to give you a fix to this golden step, without doing any core hack or htaccess thing. All,you have to do is DOWNLOAD THIS PLUGIN and install it on your site. Documentation is below; SEO Canonicalisation is a system plugin for Joomla! 1.5 that enables site 'canonicalisation', which means that when a user hits your site from another domain than your preferred (for example, www.soamjena.com instead of soamjena.com), Joomla! will redirect the user to the appropriate hostname. Previouly this would have to be accomplished by utilising a .htaccess redirect. If this extension is misconfigured it may prevent access to your site. It is recommended that you utilise the "Check Settings" option before publishing the extension. Additionally, you can rename the /plugins/system/canonicalization.php file to diasble the extension temporarily to allow access to the administrator if you have enabled that option.