Parkside Quarries. Describes the history of the stone and its uses:
www.oamarustone.co.nz
 
The Visit Oamaru web site- a good introduction to Oamaru and its attractions:
www.visitoamaru.co.nz
 
Dooleys Masonry. Check out their work on the buildings in the Historic Quarter and on other buildings in Oamaru:
www.dooleysmasonry.co.nz