Geocode Factory is a mapping component that works with Joomla! core as well as many other 3rd party extensions that store adress and/or coordinates data. It allows you to display joomla content and/or other third party items on maps in many creative ways. You can display multiple marker sets from different 3rd party components on one or more Geocode Factory maps.
With the Geocode Factory Component you can create an unlimited number of Google Maps, or even use custom map tiles instead, like Openstreetmap or any other. Each map can be customized for each instance via templating and CSS. You can add any of the many built-in options like sidebars, geolocation, dynamic radius search, underlying kml layers, and many other features!
Geocode Factory 5 is Joomla 3 compatible, and there is no backward compatibility. For Joomla 1.5 to 2.5 you can use Geocode Factory 3.