How to Internationalize and Localize Portlets
Portal developers can display portlet content in various languages and add new language support to existing portlets on Sun Java System Portal Server 7.x, which is open source and free for download. For the detailed procedures, see this new article: Configuring Portlets for Internationalization and Localization.
As the article's conclusion states, "Internationalizing and localizing portlets greatly enhances portals for non-English-speaking users." It's definitely a wonderful thing to do for your global audience.