I've been pretty busy at our current client - since I've been falling behind on my MSDN reading, here are some articles for me to remember to get back to and read one of these days...

• Serialization in WCF. link
• Security in WCF. link
• Common ASP.NET pitfalls. link
• One of these talks about Asynchronous ASP.NET pages, with a link to more detailed info.
  
• Monitor your apps with System.Diagnostics. link
• Building the MSDN aggregation system. link
  
• The performance benefits of NGen. link
• Let the CLR find bugs for you with managed debugging assistants. link
• Inside MSBuild - Custom tasks. link