Forums

Currently, there is no official forum for Grails, however you can access the Mailing lists via Nabble, which provides a forum-like interface onto the Mailing lists.

Unofficial Grails Forums

http://www.gr8forums.org (Grails, Groovy, Griffon, Gradle, and related stuff)
http://www.grailsbrasil.com (Brazilian portuguese)
http://www.groovy-forum.de (German)
http://forum.groovydev.org/ (Polish polskie)
http://groovy.org.es/forums (Spanish)
http://www.grails.org.tw (Chinese)