One of our Belgian Microsoft Certified Partners for Learning Solutions - Guidance - has created a custom training on the essentials of the Windows Workflow Foundation. I've been told lots of positive things about this training and since this week it appears as one of the 6 training's available worldwide on the MSDN Workflow Foundation site.
Not too bad for a small Belgium company! The course consists of 9 modules:
More details on this course can be found here.
Soon we will also be publishing an article ("How to dynamically start/stop/kill a workflow with the WF") of Serge Luca on the MSDN Belux web site.