Other stuff
Miguel de Icaza - Dynamic Language Runtime: The Slides
Federal Developer Weblog - Building Add-Ins for Windows Live Messenger
Sam Gentile - Microsoft at the Crossroads
Chris Bilson - Microsoft vs. TestDriven.NET
Jean-Paul Boodhoo - ReSharper 3.0 Beta - Get it while its hot
BCL Team - String.Compare() != String.Equals() [Josh Free]
Mabster - Writing a DataSet to XML, Preserving Changes

Career stuff
Rosa Say - 5 Things Employees Need to Learn—From You
Bryan - Business Etiquette for Online Introductions

Web stuff
Nicholas Allen - Just the Headers