MetaMod is a "Meta Module" - a module that includes other modules, according to a set of rules.

By installing the free GeoLite Country or City database from MaxMind, you can switch modules based on country names/cities/states etc.

Suggested uses:

• VirtueMart: hide or show different modules at checkout, cart, product pages, categories etc.
• Timed modules: recurring daily/weekly times and dates (great for radio/TV/broadcasting sites)
• Languages: show different menus/modules based on the front-end language the user has selected (e.g. with JoomFish), or according to their browser language
• Users: show a module for users registered for more (or less) than a certain time period, or target modules to certain users or groups
• Switch between 2 modules for logged-in users and guests
• Section/Category-specific modules: target modules according to the section/category of the displayed article
• Domain & referrer: display different modules depending on which domain is being used for the page, or which site the user linked from
• Browser detection: switch modules depending on the user's browser & browser version (e.g. show a different module for people viewing the site with Internet Explorer IE)
• Control modules based on text found in the main component of the page
• Control modules such as RSForm (show a different form based on where in the world someone is connecting from, etc)
• Target modules onto specific pages in JReviews, CommunityBuilder, SOBI and almost any other component
• Dynamically control the parameters of other modules on the page as well as whether the modules appear or not
• and so much more!

Many more uses can be found in the documentation on the site, and in the forums. See you there!