Workflow and Custom Activity Best Practices

I’m catching up on my backlog of interesting bookmarks. Among them are a couple of endpoint.tv video sessions with Leon Welicki and Ron Jacobs. Leon is reviewing a set of best practices for WF4 including when to use each base activity class, and so on. Good stuff. Definitely worth a viewing:

Part 1:
http://blogs.msdn.com/b/endpoint/archive/2010/06/24/endpoint-tv-workflow-and-custom-activities-best-practices-part-1.aspx

Part 2:
http://blogs.msdn.com/b/endpoint/archive/2010/06/25/endpoint-tv-workflow-and-custom-activities-best-practices-part-2.aspx