Daniel Spiewak starts things off by providing a three part series on the use of Scala's collection API, which fulfills the same purpose in Scala as the widely used Java collections framework.
Daniel states that Scala's collection API is radically different to the Collections API included in Java. Explaining why this is one area with such a startling difference, as well as, numerous examples on the use of this API.
Additionally, Aseem Bajaj provides an introduction to creating one of the most common components used in the Java EE platform - a Servlet - using Scala, with step by step instructions.
Read Daniel Spiewak's post on Scala's collections API - Part 1
Read Daniel Spiewak's post on Scala's collections API - Part 2
Read Daniel Spiewak's post on Scala's collections API - Part 3
Read Aseem Bajaj's post on creating servlets with Scala