And no, I don't mean the World Wrestling Federation or the World Wildlife Fund, I mean Windows Workflow Foundation, 'WF' or 'dubdubef' (to stay out of copyright conflict).
I've been playing around with this technology for a couple of weeks now. It took a little while to get all the installations working smoothly, especially since I switched versions in midstream. I've found websites, forums, articles, tutorials, samples and commentary on the subject to digest. Here's a somewhat organized listing of the resources I've found most useful.
Windows Workflow Homepage:
Windows Workflow Foundation (WF): offshoot of the official Microsoft .NET Framework 3.0 page.
Downloading the Tech:
First thing to do: uninstall previous versions.
Then, go to this page (or check the WF News and Announcements page. Now download and install the MS .NET Framework 3.0, then the Visual Studio 2005 Extensions.
Learning the Tech
WF Samples for download
Hands-on Labs for Windows Workflow Foundation Release Candidates
Reading about Tech
Paul Mehner's WF blog agreggation page
Discussing the Tech
MSDN WF Forums