There are many good resources for getting started with WF. The .NET Framework Developer Center for WF (on MSDN) has many good resources. There are also some introductory screencasts here, and two good whitepapers in the MSDN Library: The Workflow Way: Understanding Windows Workflow Foundation and A Developer's Introduction to Windows Workflow Foundation (WF) in .NET 4. The WF MSDN documentation contains a Getting Started Tutorial which walks through the basic steps of creating workflows and hosting them. There are also hands-on labs for WF. They are available as part of the Visual Studio 2010 and .NET 4 Training Kit on the Microsoft Download Center, (which includes labs for many areas of .NET 4 and VS other than WF), and are also available integrated within Visual Studio from the Ron Jacobs MSDN blog.
The following links are articles in the TechNet Wiki (the site that you are on right now). The Wiki allows you to add your personal knowledge and expertise to a public forum. If an existing topic needs work, and you have the expertise, please fix it. (For example, if you know of a good WF resource that is not linked on this overviewpage, please feel free to add it in the appropriate section, or create a new section!) Or if you have knowledge that would be useful to others, create a new page to share it.
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Ed Price - MSFT edited Revision 18. Comment: Adding tags
Horizon_Net edited Revision 16. Comment: updated formatting
Horizon_Net edited Revision 15. Comment: added german version and added language tags
Nevin Janzen edited Revision 14. Comment: Tags Edit
Horizon_Net edited Revision 13. Comment: Added toc.
Steve Danielson edited Revision 10. Comment: Added Patrick Carnahan's blog
Ed Price MSFT edited Revision 9. Comment: Minor edits.
Ed Price MSFT edited Revision 7. Comment: Minor edits and clarified external links.
Steve Danielson edited Revision 6. Comment: Added link to FAQ in WF Wiki Pages section
Ed Price MSFT edited Revision 5. Comment: Added horizontal lines to divide sections.
Steve Danielson edited Original. Comment: Added xhinker.com/.../WF4.aspx blog to Blogs section
Steve Danielson edited Revision 1. Comment: Added link to blogs.msdn.com/.../kushals blog
Ed Price MSFT edited Revision 2. Comment: Added "See Also" section.
Steve Danielson edited Revision 3. Comment: Added "The Problem Solver" - msmvps.com/.../default.aspx
Ed Price MSFT edited Revision 4. Comment: Removed "Wiki" in title. Every page on this wiki could have that in the title, so we should remove it for consistency.
more info needed on the workflow history.
How about resources on WF .NET 3.5?
Fantastic article!!