Some teams just have really experienced programmers, and others (like us) use a Content Management System. Examples are Wordpress (when configured properly), Drupal (ours), Joomla!, PHP-Nuke, and a whole lot more. You can give most of them a run at opensourcecms.com. I can't help you with organic web building, though. I tried, I 'faild'.
http://www.bedfordrobotics.org No content at all. Waiting to switch hosts.
http://www.bedfordrobotics.org/forum Not much here either.