Are there good Grails sample applications from which to learn? [closed]

Answer 1

Yes. IBM has an excellent series of articles building on to a sample application at IBM's developerworks site:

Part I:
http://www.ibm.com/developerworks/java/library/j-grails01158/

The Series: http://www.ibm.com/developerworks/views/java/libraryview.jsp?search_by=mastering+grails