A community run by and for people interested in playing and writing computer games.
SilverlightCream grew out of a series of blog posts of the same name to try to bring the best of the community Silverlight code to the forefront for developers.
The official Miscrosoft site and also number 1 resource for all things Silverlight related.
Fun Silverlight site, contains lots of silverlight related material as well as games!
The Silverlight 1.1 alpha bits don't currently have much in the way of controls...