This is a follow-up on my post on the Actor Model, as I was very generous in my definition of F# Agents as a full-fledged Actor framework. F#:er s have been wanting something like the Akka framework for Scala. Colin Bull from whom I also reblogged the F# and Raven post below, posted about a framework on his blog that will provide this, and it also explains what the difference is and what the requirements are for an Actor framework.