Writing custom Gradle plugins
Gregory Boissinot has written in the Zenika blog on how to write custom plugins for Gradle.
Mixing Ant and Gradle scripts
Gregory Boissinot has written in the Zenika blog about the Gradle 0.7 Ant integration.
Gradle and OSGi Bundles
Hamlet D'Arcy has written a blog about how to create Groovy based OSGi bundles with Gradle 0.7
Hamlet D'Arcy has written a blog about using Pax Exam to test OSGi bundles from Gradle 0.7
Migrating from Maven to Gradle
Experience over at BeeWorks http://www.beeworks.be/maven-to-gradle-part-1/, http://www.beeworks.be/maven-to-gradle-part-2/, http://www.beeworks.be/maven-to-gradle-part-3/
The Gradle Goodness blog series by mrhaki
For seeing all: http://mrhaki.blogspot.com/search/label/Gradle
Here are the code samples: http://github.com/mrhaki/Gradle-Goodness
Running easyb stories in a Gradle build
http://agileice.blogspot.com/2009/11/running-easyb-stories-in-gradle-build.html
Gradle & Clojure
Gradle + Clojure = clj-gradle
Bleeding Edge Clojure Development using clj-gradle
Various Gradle-related blog posts:
http://kaczanowscy.pl/tomek/category/tool/gradle - including comparison of some features of Ant, Maven and Gradle