You can visit a number of web sites for the popular Virtuemart open source shopping cart extension for Joomla from here.
You can view a number of country specific Joomla! based web sites from across the world who provide information and support for the content management system from here.
Useful web sites
We have listed a number of useful web design sites which may interest you.
We have listed various Joomla based web sites for freelancers, books and tutorials which you may find useful.
We have listed a number of reputable web sites who offer shared, VPS and dedicated web hosting for the Joomla! content management system which you may find useful.
You can find out more information about the official Joomla web sites including the Joomla.org site, support forum and extensions download site plus more from here.