- Pedram Rezaei’s Ramblings – a bit of everything: Parallel Extensions for .NET, WCF, WPF…
- Fabulous Adventures In Coding by Eric Lippert [MSFT] – generics, advanced .NET topics, covariance vs contravariance, etc.
- Managed World blog by Jason Olson [MSFT?] – a lot of interesting information about new .NET things like lamdas, Managed Extensibility Framework, F#, etc.
- Ayende @ Rahien by Oren Eini – testing, mocks, a lot of code snippets (including Code of the Week), etc.
- Kirill Osenkov – QA, advanced C#, etc.
- Sree’s ventures in code space by ? – debugging, C#, extension methods, etc.