Exam:

70-536:

http://www.microsoft.com/learning/en/us/Exam.aspx?ID=70-536&Locale=en-us

Second shot (valid until June 30, 2010):

http://www.prometric.com/Microsoft/SS_MCP_form.htm?s=ssm

MOC 2956B:

Delegates and Events in C# / .NET

http://www.akadia.com/services/dotnet_delegates_and_events.html

DotNetZip - Zip Class Library

http://dotnetzip.codeplex.com/

Prefix-casting versus as-casting in C#:
http://gen5.info/q/2008/06/13/prefix-casting-versus-as-casting-in-c/

MOC 2957B:

Hatchbrush shapes:
http://www.java2s.com/Tutorial/CSharp/0480__2D/HatchBrushStyle.htm

Manual Double buffering:
http://www.bobpowell.net/doublebuffer.htm

String Format 101:
http://blogs.msdn.com/kathykam/archive/2006/03/29/564426.aspx

Regex Lib:
http://www.regexlib.com

RegexBuddy:

http://www.regexbuddy.com/

Service Custom Commands
http://arcanecode.com/2007/05/30/windows-services-in-c-sending-commands-to-your-windows-service-part-7/

IPC Channel communication
http://www.codeguru.com/csharp/csharp/cs_syntax/remoting/article.php/c9251

Automation Compatible Types:

(not complete)

http://dragona79.springnote.com/pages/97595

Other:

From WinForm to WPF: A Quick Reference guide
http://www.simple-talk.com/dotnet/.net-framework/from-winform-to-wpf-a-quick-reference-guide/

ReSharper

http://www.jetbrains.com/resharper/buy/index.jsp