What is Microsoft Silverlight?Silverlight Resources, Articles,Tutorial

Recently, I have been regularly hearing about Microsoft Silverlight which is going to replace Adobe Flash and Action script. Actually, I love it because i can develop rich interactive applications using my current .NET knowledge without having to learn new technology or scripting language like Actionscript. XAML is also based on XML which i already know. It also support languages lik Ruby and Python. Sounds coool. Here is the definition of Silverlight on Wikipedia.