The Christchurch City Council and it's Christchurch Libraries have a site called canturburystories.nz.
Whilst funded by the Christchurch City Council it is not restricting itself to Christchurch with material from Selwyn, Waimakareirei and Timaru posted on the site.
We will provide more details and contacts.
They are looking for images to scan and post along with stories (PDF etc) on the site.
We'll keep you posted!