fp-scala

Functional Programing in Scala by Paul Chiusano and Rúnar Bjarnason

http://www.manning.com/bjarnason/ (eBook: http://www.manning.com/ebookoffer/)

http://www.manning.com/about/meap.html

https://github.com/fpinscala/fpinscala

http://www.scala-lang.org/api/current/index.html#scala.collection.immutable.List

http://tutorials.jenkov.com/java-util-concurrent/executorservice.html