http://www.toddbaginski.com/blog/archive/2009/11/20/which-sharepoint-2010-site-template-is-right-for-me.aspx
http://sharepointdevwiki.com/display/sp2010/Site+Templates+in+SharePoint+2010?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+SharepointDevWiki+%28SharePoint+Dev+Wiki+RSS+Feed%29