Douglas Crockford: Monads

http://www.youtube.com/watch?v=dkZFtimgAcM Douglas Crockford: Monads Talk 

http://channel9.msdn.com/Shows/Going+Deep/Hewitt-Meijer-and-Szyperski-The-Actor-Model-everything-you-wanted-to-know-but-were-afraid-to-ask 

http://en.wikipedia.org/wiki/Monad_(functional_programming)#The_Maybe_monad 

http://www.manning.com/bjarnason/ Functional programming in Scala

http://letitcrash.com/ Erlang let it crash model 

http://stackoverflow.com/questions/7103864/what-are-practical-uses-of-applicative-style

http://prog21.dadgum.com/16.html Garbage collection in Erlang, very interesting read.