Live@edu is Microsoft's free portal, communications, and collaboration suite for education. The cross-platform service provides a range of hosted solutions for education institutions, including mail (with 10 GB per user), Windows Live SkyDrive storage (25 GB), and Office Live Workspace collaboration and document sharing, among others. According to Microsoft, it's now in use by more than 9 million students worldwide. With more than 24 million users participating in more than 2.2 million courses, Moodle is generally recognized as the most popular learning management system on the market, open source or otherwise. It supports both small and large deployments (with several sites well beyond 100,000 users) and includes course management tools, various Web 2.0 technologies, online assessments, and other features common to learning management systems.