Jeff Scott Brown explains how to write polyglot applications with Grails, focusing on what it takes to add support for Scala, Clojure and other languages.
David Pollak presents Lift's design and how the same design decisions were applied to Clojure/ClojureScript/AngularJS. Lift is a web framework with support for server-push.
Rich Hickey presents the motivation, design and use of the Clojure core.async library, the reasons for choosing the CSP approach and how it helps to structure applications.
Brenton Ashworth introduces the Pedestal application library as a way to build rich collaborative applications in Clojure and ClojureScript.
Paco Nathan reviews an example data analysis application written in Cascalog used for a recommender system based on City of Palo Alto Open Data.
Rich Hickey discusses the motivation, design and use of the Clojure core.async library.
Daniel Gregoire introduces Gershwin, a stack-based, concatenative programming language with a Clojure runtime that targets the JVM.
Gary Fredericks shows some tricks for getting the most out of Clojure obfuscated code.
Antoni Batchelli introduces VMFest, a PalletOps project used to turn VirtualBox into a lightweight cloud provider, good for developing cloud automation.
Dave Ray explains using RxJava in Clojure for building non-blocking "Observable APIs" and efficiently compose asynchronous flows together using functional reactive operators.
Craig Brozefsky introduces clj-mook which provides a session abstraction for client interactions with a web application based on clj-http, a handful of threading macros, JSoup, and a couple of maps.
Joshua Ballanco introduces Immutant, Immutant Overlay, HornetQ and OpenShift to Ruby and Rails developers.