New modules are constantly being developed. To keep abreast of the latest developments, take an occasional look at the Modules and plug-ins database, on http://www.moodle.org/ where you get most modules. And even if you're not a programmer, contributing feedback and documentation to the modules in progress is a great help in their development.
The following screenshot shows you the Modules and plugins page from moodle.org. Notice that the page lists the version of Moodle required, and whether the module is standard, third party, or contributed. Clicking the icon all the way to the right takes you to that module's page. On that page, you will find all the forum postings dealing with that module. You will also be able to download that module.
