I’ve been using Joomla! for a little while, and have been very impressed by the features and community suppport for it. The only pain is keeping up with the security updates, but that’s not really much hassle, and it obviously pays to keep updated.
From an SEO perspective, I have been watching where my links have been coming from and I have noticed that I starting to get some hits from google from my researched keywords even though I havent added any of the SEO componants that re-write the URL. This just goes to show that google is after original content.
I have written a mambot for Joomla that cloaks affiliate links. If you run an affiliate site and dont cloak your links, you should know that you are loosing commission through users changing the link. My link cloaker is simple to install and use on any Joomla site – even if you have a Joomla site with many links, it is very quick and simple to alter the links to cloak them. This software is free, and you can download it from the link on the right.