Four more Silverlight 4 videos up! Here are the links and source code:

• Silverlight 4: Printing in Silverlight [code]
• Silverlight 4: Webcam and Microphone Support in Silverlight [code]
• Silverlight 4: Silverlight and the Managed Extensibility Framework [code]
• Silverlight 4: Silverlight and WCF RIA Services [code]

UPDATE: Just added the final two videos in the series!

• Silverlight 4: Silverlight and Multicast Networking [code]
• Silverlight 4 Out-of-Browser Enhancements [code]