A free link exchage for Joomla sites only, site has a Google PR2 rating and is Joomla related which helps.
Joomla Templates Hosting Extensions Directory
You can also reccomend a Joomla site that you may find of importance, for example if you have found a great extension that is not listed at Joomla.org and woul like to share it.
I have just created a general directory for Joomla powered websites until i feel they need to be catagorised.
Please post in correct section and any suggestions would be appreciated