FreeSource :
devel/Java/Grails/links
Grails
Getting Started with Grails
(книжка)
[RU]
http://grails.ru
http://www.grailspodcast.com
http://mrhaki.blogspot.com/search/label/Groovy%3AGoodness
Mastering Grails: Build your first Grails application
Mastering Grails: GORM: Funny name, serious technology