The Silverlight SDK sample browser lets you explore all the live samples used by the official Silverlight documentation.
In the past, the source code for the samples could only be found in the documentation. Now, however, you can view the source directly from the sample browser by clicking a new button in the header section.
When you click the button, a new browser window opens and displays the code.
The code shown is the same as in the documentation, but now you don't have to dig for it! (Okay, so the digging is not much of a chore in most cases, but some topics are quite long and use multiple samples, making it harder to match the sample to the source.)
Thanks go out to the Silverlight Toolkit team for their cool sample browser from which I adapted the source viewer code.
Karl Erickson Silverlight User Education