Well here is my first attempt at writing about Java 8 lambda expressions:
Java 8: Lambda Expression Basics
This is an introduction to the syntax and how it solves the vertical problem with anonymous inner classes. But there is a lot more to come.
I'm writing a couple lambda web tutorials for work so I am vetting the content first here. So if you have any feedback, please post a comment or hit me up on Twitter (@blueskymikey). Thanks.