Super-Presentation:

http://www.grahamlea.com/2013/02/a-new-java-library-for-amazing-productivity/

Timushev:
http://www.slideshare.net/romantimushev/scala-36731150

Scala Performance:
http://www.slideshare.net/Shutty/scala-performance

Gleichmann - Functional Scala
  http://gleichmann.wordpress.com/series/
Subramanian - Scala for the Intrigued
  http://www.youtube.com/watch?v=grvvKURwGNg
Rosen - Scala vs Java
  http://marakana.com/s/post/1053/scala_versus_java
Spiewak - May Your Data Ever Be Coherent
  https://www.youtube.com/watch?v=gVXt1RG_yN0

http://www.scalakoans.org/

Evolution
https://medium.com/@olxc/the-evolution-of-a-scala-programmer-1b7a709fb71f