Ring is the foundation of web programming in Clojure. It has a broad ecosystem of libraries that fullfil many different roles in the web stack. This article introduces the fundamental concepts of Ring as well as four major libraries, and explains common idioms to help you get started quickly.

Parser combinators are a powerful way of expressing complex parsers as first class operations in a language with first class functions. This tutorial introduces one such library, fnparse, for Clojure.

Following my introduction to fnparse, this article looks at how more common functional programming tools can be leveraged to make parsers that output new parsers.