Fedora Project - A Linux based operating system. Download, documentation, FAQ, and wiki. Official site.
Linux Distribution Chooser - A wizard that helps you choose a distribution based on your requirements and skill level.
Open Invention Network - An intellectual property company that was formed to promote Linux. It acquires patents and makes them available royalty-free to any company, institution or individual that agrees not to assert its patents against the Linux System.
Ubuntu Linux - A popular Linux-based operating system, available with both community and professional support.