Joomla! has a very healthy developer ecosystem providing both commercially available and free extensions. Commercial extensions are usually offered on a per site or on a club basis.
In this chapter we looked at a number of useful extensions that can add a great deal of functionality to your site. The content uploader allows the ability to bring in vast amounts of data from a spreadsheet into your site, automatically creating articles.
Working with eXtplorer you have the built-in power of FTP and some server-side commands such as changing permissions and archiving.
Adding the powerful jomCalendar to your site gives you the feature-rich. multi-calendar system for such site applications as sports teams or social events.
And last but not least, a commenting application that gives you instant comment capability across a range of resources.
The extensions in Joomla.org site is filled with many wonderful extensions in several categories. Take some time and browse through it for ideas and extensions...