Ubuntu is a free operating system. Ubuntu project: "We believe in fast, effective computing for everyone. Created by the open-source community and Canonical, Ubuntu is free to use and share, at home and in business."
Moodle is a Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a Free web application that educators can use to create effective online learning sites.
Find open source software alternatives to well-known commercial software. Allows you to browse by commercial software and then lists open source alternatives.
The AMNH DSpace Digital Repository is a digital archive maintained by the Research Library for AMNH Scientific Publications and materials digitized by the Library.