Grails services and Google Maps
Scott Davis shows you how you can add maps to a Grails application using freely available APIs and Web services in this latest installment of Mastering Grails. He uses the trip-planner sample application from previous installments and takes it to the next level with geocoding, Google Maps, and Grails services.
http://www.ibm.com/developerworks/java/library/j-grails05208