The Clojure and ClojureScript application, which is impressive in its functionality and beautifully structured source code – UXBOX (by uxbox.io).
Using Emacs+Cider for UXBOX source code browsing under Linux. To set up Emacs for Clojure and ClojureScript with Cider, see e.g.: My Emacs configuration.
A library for development of single-page full-stack web applications in Clojure / ClojureScript – Fulcro (by Fulcrologic, LLC).
Fulcro 2.0 is a library for building data-driven full-stack applications for the web. It uses React, is written in Clojure and Clojurescript (so it has first-class functional abilities with …
A lightweight ;-) i18n solution for ClojureScript that uses a DataScript database. It's inspired by Tower, a Clojure/Script i18n & L10n library.
Update: later found the Tongue library (by Nikita Prokopov).