Despite living in Australia, I still like to know what happening in Radioland in New Zealand.
This site The Radio Vault gives a good solid history on the site of New Zealand radio, categorized by city/town and the guy who runs, is a real nice guy and he puts up cool history clips which you can find on the facebook page.
http://www.facebook.com/radiovault
So become a fan of the facebook page and discuss and find out more about the history of New Zealand radio.