So you want to set up a new site, and you have decided it’s gonna be a Joomla! site? There are two ways to go about this, depending on your preference and your host’s possibilities: setting up Joomla! using the download from joomla.org or setting up Joomla! using your host’s cpanel interface
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My Favorite Joomla! Extensions
Some Joomla! extensions you always use, some you only install when the situation asks for it. There are paid extensions and free, open source extensions. In most cases, you will be able to find the functionality you are looking for amongst the many free extensions in the Joomla! extensions library.
After a fresh install
Read the post at My Favorite Joomla! Extensions