Localization
Firefox is the popular open source web browser from Mozilla
Powerful wiki software built to support the Wikipedia project
FreeMind is a premier free mind-mapping software written in Java.
Wikipedia is a global and multilingual Web-based cooperative free-content encyclopedia.
The Social Source Commons is a “knowledge commons” that provides users with: a directory of software applications; links to relevant documentation, localization tools, services, user reviews; and a place to request tools/features.
Open source content management and learning management system focused on online education communities.