If you're like me, you don't like proprietary video and audio codecs. Be that as it may, some sites, like NBC's Olympics site, use Microsoft's proprietary Silverlight streaming technology. Until recently, if you were using Linux that meant you couldn't watch videos from these sites at all. Until now. The Mono Project, a Novell sponsored open-source initiative to bring .NET code to Linux, has just released an open-source, Firefox add-in Moonlight 1.0 that enables Linux desktop users to view Moonlight content.