How do I find Joomla! 3.x compatible extensions?
From Joomla! Documentation
Revision as of 22:21, 14 April 2013 by Tom Hutchison
Visit Joomla Extension Directory (JED), which will have Joomla 3.0 compatible icons to let you know which extensions are Joomla 3.0 compatible; however, the best place to check is your extension developer’s site.