Human Workflow in Windows Workflow Foundation
If you are interested to see how to make use of Windows Workflow Foundation with SMTP and Office Live Communication Server, check out the following article, "Simple Human Workflow with Windows Workflow Foundation"...
http://msdn.microsoft.com/winfx/reference/workflow/
default.aspx?pull=/library/en-us/dnlong/html/hmnwkfwwf.asp
Noticed the many cool looking workflow primitives?
Check it out!