Mapping Out Lambda Land: An Introduction to Functional Programming by Katie Miller.
From the post:
Anyone who has met me will probably know that I am wildly enthusiastic about functional programming (FP). I co-founded a group for women in FP, have presented a series of talks and workshops about functional concepts, and have even been known to create lambda-branded clothing and jewellery. In this blog post, I will try to give some insight into what the fuss is about. I will briefly explain what functional programming is, why you should care, and how you can use OpenShift to learn more about FP.
With the publicity around OpenShift and functional programming, it seems entirely reasonable to put them together.
Katie gives you a quick overview of functional programming along with resources and next steps for your OpenShift account.
I first saw this in a post by Jonathan Murray.