Windows Workflow Foundation, WF, and WCF

Thot followings might be good resources for .NET 3.5 Workflow, and Workflow as a Service.

MSDN, David Chappell, Introducing Windows Workflow Foundation, Chappell and Associates
http://msdn.microsoft.com/en-us/library/ee210343.aspx

OdeToCode.com, K. Scott Allen: Answers to WF Interview Questions
http://odetocode.com/blogs/scott/archive/2007/10/31/answers-to-wf-interview-questions.aspx

Guy Burstein, Execute Windows Workflow Rules without Workflow
http://blogs.microsoft.co.il/blogs/bursteg/archive/2006/10/11/RuleExecutionWithoutWorkflow.aspx

Guy Burstein, Build workflow rules using Code Dom and Rules API
http://blogs.microsoft.co.il/blogs/bursteg/archive/2006/12/04/RulesWithCodeDom.aspx

MSDN, Learning Workflow Foundation
http://msdn.microsoft.com/en-us/library/ee373755.aspx

MSDN, Selecting Workflow Type
http://msdn.microsoft.com/en-us/library/dd756424.aspx

MSDN, How to Choose Your Workflow Model in WF
http://msdn.microsoft.com/en-us/library/cc768563.aspx

MSDN, Windows Workflow Foundation: Creating a Custom Composite Activity
http://msdn.microsoft.com/en-us/library/dd177566.aspx

MSDN, WF Scenarios Guidance: SharePoint and Workflow
http://msdn.microsoft.com/en-us/library/cc748597.aspx

MSDN, WF Scenarios Guidance: Presentation Flow
http://msdn.microsoft.com/en-us/library/dd557867.aspx

MSDN, WF Scenarios Guidance: Human Workflow
http://msdn.microsoft.com/en-us/library/cc709416.aspx

MSDN, WF Scenarios Guidance: Workflow Services
http://msdn.microsoft.com/en-us/library/cc825354.aspx

Parallel Programming with .NET 3.5

How do you speed up the iterative activities in your program? May be routines that queries a chunk of data and processes 1 by 1. Sometimes there are scenarios where you have optimized your code to the maximum, indexed your tables, moved dynamic queries to stored procs etc. and yet you need to make it more faster.

Parallel Extensions for .NET 3.5 SP1 on DevLabs
This is officially shipped with .NET Framework 4. If you're using .NET 3.5 SP1, however, you can still obtain an unsupported release of Parallel Extensions. It's available as part of the Reactive Extensions (Rx) DevLabs release, in the System.Threading.dll.

In order to use the features with .NET 3.5 applications, you will need to add a reference to the back ported standalone DLL named System.Threading.dll. This additional step is not present with .NET 4, since the parallel technology is baked into core CLR components.

You can download the libraries via Parallel Extensions for .NET 3.5 SP1 on DevLabs.

MSDN Magazine, Parallel Performance: Optimize managed code for Multi-Core machines
http://msdn.microsoft.com/en-us/magazine/cc163340.aspx

MSDN Forums, Parallel Extensions to the .NET Framework
http://social.msdn.microsoft.com/Forums/en-US/parallelextensions/threads

Parallel Computing > Learn > Parallel Computing Videos
http://msdn.microsoft.com/en-us/concurrency/bb896010.aspx

MSDN Reactive Extensions and Parallel Extensions
http://blogs.msdn.com/b/pfxteam/archive/2009/11/19/9925951.aspx

MSDN Parallel Computing, Essential Downloads
http://msdn.microsoft.com/en-us/concurrency/bb896007.aspx

Channel 9, Parallel Extensions
http://channel9.msdn.com/tags/Parallel+Extensions/