depends on the application that is being internatonalised/localised
Was:GPL
A community project where open source software is internationalised and localised. Translatewiki.net is where Wikipedia is localised, this results in a community with localisation in over 150 active languages.
Translatewiki.net does localise other software as well when the software is freely licensed and when there is active support for the internationalisation of the software and when localisations are updated in a timely fashion
Was:Extension which provides framework for translating MediaWiki, its extensions and other projects.